My Bestseller Has a Lower Margin but Sells Five Times More Units Than My Premium Candle — How Do I Compare Their Total Profit Contribution?

Why the comparison is a multiplication, not a ranking

Contribution margin is a ratio: what is left of a sale after the costs that vary with that sale, expressed as a percentage of the price. It is genuinely useful — it tells you how much room you have for a discount, how badly a cost rise will hurt and how a product compares with itself last quarter. What it cannot do is tell you which of two products made more money, because a percentage has had the volume divided out of it.

The number that answers your question is total contribution: unit contribution × units sold in the period. Draw it and it is an area — height is contribution per candle, width is candles sold, money is the rectangle. A premium candle is a tall, narrow rectangle. A bestseller is a short, wide one. Nothing about being tall makes a rectangle bigger, and your five-to-one ratio makes the wide one very wide indeed.

One definition before the arithmetic, because it decides whether the whole comparison is honest: contribution must be net of everything that varies with the unit, not just materials. If your premium candle goes out in a rigid box with tissue and the bestseller goes in a mailer, those costs belong inside the unit contribution before you multiply. This page prices the materials CSI sells and leaves every other variable cost as a blank row, so the figures below are contribution before your own packaging and delivery — and the premium line usually loses more to those than the volume line does.

The two candles, costed line by line

Both candles below are built the same way so the comparison is like for like: 200 g of wax, a fragrance load of 8% of wax weight — 16 g of oil, 216 g poured — one vessel and one wick. Only the grade, the scent, the glass and the wick thickness change. That is deliberate: if the premium candle were also bigger, the cost gap would be a size difference wearing a premium label, and you would learn nothing about the mix.

Where the gap actually comes from is worth naming, because it is not the wax. The wax line moves from ₹79.80 to ₹127.40, a difference of ₹47.60. The fragrance line moves from ₹46.26 to ₹145.92, a difference of ₹99.66. The scent is 58.1% of the whole cost gap between the two candles. That is normal, and it is why a premium line is usually a fragrance decision dressed up as a wax decision.

Check the fragrance ceiling separately for each pairing, because they are published differently. The Eco Soy CSI 400 page publishes no fragrance load, so the Citronella Fragrance Oil page's stated use of up to 10% is the only published limit on that candle. The Premium Coconut Soy CSI 468 page states a load of up to 13% of total wax weight, and the Santal Noir page publishes no candle usage range, so the wax grade's stated maximum is the only published limit on that one. Both candles sit at 8%, inside the limit that applies. Where two figures are published, the lower governs — but here only one figure exists in each case, and saying so is more useful than inventing the missing half.

The comparison: unit contribution × units

Your title gives one figure and it is the one that matters: the bestseller sells five times as many units. That ratio is yours and this page uses it exactly as given. The cleanest way to apply it, without anyone inventing a monthly volume for you, is to work per premium candle sold: for every one premium candle, five bestsellers go out of the door.

So per premium candle: the premium line contributes ₹745.44 and the bestseller contributes 5 × ₹317.04 = ₹1,585.22. The bestseller is ahead by ₹839.78, a ratio of 2.13 to one. Scale that to any month you like and the ratio does not move, because it is a ratio. The table below puts an illustrative month underneath it so the rupee sizes are legible — 100 premium candles and 500 bestsellers — but those two volumes are illustrative and the 2.13 is the finding.

Two rows in that table deserve attention beyond the headline. Revenue: the bestseller is 69.42% of turnover and 68.02% of contribution, so the two shares are close — which is a comforting sign that the mix is not hiding anything. When they diverge sharply, a product is buying revenue with margin. Materials cash: ₹90,978.00 against ₹35,356.00, so the bestseller also ties up nearly three times as much money in stock. Whether that is the right use of the cash is a different question with a different answer, and this page does not attempt it.

Where the premium candle would win

The bestseller ties the premium line when its unit contribution multiplied by the volume ratio equals the premium's unit contribution. Rearranged, the tie ratio is simply the premium's contribution divided by the bestseller's: ₹745.44 ÷ ₹317.04 = 2.35 to one. Above that ratio the bestseller contributes more; below it the premium does. Your five to one is comfortably above, which is the whole answer to your question.

The same threshold read the other way round is often more useful day to day. At a fixed five-to-one ratio, the bestseller only needs a unit contribution of ₹745.44 ÷ 5 = ₹149.09 to match the premium line. At the illustrative materials cost of ₹181.96 that corresponds to a selling price of ₹331.04. Equivalently, for the premium candle to catch up at one fifth of the volume, its unit contribution would have to reach ₹1,585.22 — a selling price of ₹1,938.78 on the same materials. Both of those figures are illustrative, and both are a long way from where the two products currently sit.

What total contribution does not tell you

Contribution is a good question and a narrow one. It ignores the cash each line ties up while it waits to sell: ₹90,978.00 of materials against ₹35,356.00 on the illustrative month, and contribution per rupee of materials of 1.74 against 2.11 — which is a different comparison with a different winner, and not one this page answers. It ignores bench time, and 500 candles take five times as long to pour, wick, label and pack as 100 do. It ignores what each line does to the brand, and a premium candle that never pays for itself may still be the reason a customer trusts the range.

It also ignores every variable cost CSI does not sell, and those fall unevenly between a volume line and a premium one. A premium candle usually carries heavier packaging, a rigid box, tissue, sometimes a dust bag, and it is the line most likely to be sold one at a time with free delivery attached. Put real figures in the rows below for each SKU separately before you trust either contribution, because a premium candle can lose a hundred rupees to presentation that a bestseller never spends.

There is one more honest caution about the five-to-one ratio itself. It is a snapshot, and Indian candle demand is strongly seasonal: Diwali, weddings, Rakhi and corporate gifting pull volume forward and change the mix as well as the total. A premium line often sells at a very different ratio in the gifting weeks than it does in the monsoon, so calculate the ratio over a full twelve months before you rearrange the range around it. For Diwali on 8 November 2026, with soy needing 14–21 days of cure by ordinary practice, the mix decision has to be made well before the materials are ordered in October.

Running the comparison on your own two products

Applied to the numbers on this page, the answer to your question is straightforward and a little uncomfortable: the bestseller is carrying the business. It earns ₹317.04 a candle against ₹745.44, it loses the margin comparison by 4.29 percentage points, and on your five-to-one ratio it still contributes 2.13 times as much money. That does not make the premium candle a mistake — it makes it a product that has to justify itself on something other than its margin percentage, whether that is brand, gifting, or the customer it brings in who then buys the bestseller.

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