Result
Profit after the change
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This calculation is for informational purposes only and does not replace advice from a qualified professional. Formulas and rates may not fit your exact situation — double-check the figures before making decisions.
How it is calculated
Profit before the change = (price − variable cost) × volume − fixed costs. Profit after the change uses the same formula with a new variable cost = current variable cost × (1 + change ÷ 100). Price and sales volume are assumed unchanged in this calculation.
A variable cost change hits profit directly and in proportion to volume: a per-unit cost increase is multiplied by the entire sales volume, so even a small percentage increase in materials or components can eat noticeably into profit at high volumes.
If the cost increase comes from higher purchase prices across the whole product range rather than one item, it's more accurate to recompute this through the gross or operating margin calculator with new figures for total revenue.