Why small price rises have an outsized effect
A price rise goes straight to profit, since your cost per unit stays where it was. For a business earning $20 on a $50 product, a 10% rise adds $5, which is 25% more profit per sale. That cushion means you can lose a meaningful share of sales and still be no worse off.
Losing a few price-sensitive customers can even help. Fewer orders mean less fulfilment and support work, a benefit this calculation does not count.
The formulas
New price
New price = Current price × (1 + Increase ÷ 100)
Break-even sales loss
Max loss % = (1 − Current unit profit ÷ New unit profit) × 100
Profit after the change
New profit = New unit profit × Units × (1 − Expected drop ÷ 100)
Worked example
A company sells 1,000 units at $50 with a $30 cost. It is considering a 10% increase and expects sales to drop about 5%.
- New price: $55.00, raising unit profit from $20 to $25.
- Profit today: $20 × 1,000 = $20,000.00.
- Units needed to match: $20,000 ÷ $25 = 800 units, so it could lose up to 20% of sales.
- At a 5% drop: 950 × $25 = $23,750.00, a gain of $3,750.00.
Raising prices without losing trust
- Give notice to existing customers and explain what changed, such as higher material costs or added capabilities.
- Test first with new customers or one product line before changing everything.
- Check your contracts for fixed-price or renewal terms that apply to current clients.
- Add value where you can, such as a faster turnaround or an extended warranty, to make the new price easier to accept.
Frequently asked questions
How do I estimate the sales drop?
Look at past price changes, ask a few trusted customers, or test on a limited group. If you have no data, run the calculator at several values and see how much room you have.
Is a big single rise better than several small ones?
It depends on your customers. Small regular rises are usually less of a shock and easier to explain, while one large rise may be better when prices have fallen well behind costs.
Does this apply to freelancers?
Yes. Use your hourly rate as the price and any per-hour costs as the cost. For many freelancers, the per-hour cost is close to zero, so they can afford to lose quite a lot of work after a rate rise. The hourly rate calculator can help set the new rate.
Should existing customers keep the old price?
That is a business choice. Keeping loyal clients on an older rate for a set time can soften the change, but make sure the end date is clear in writing.