How do I work out a discount?

Use the Discount tab: enter the original price and the discount percentage to see what you pay and what you save.

How is percentage change calculated?

The difference between the two values divided by the original value, expressed as a percentage. A negative result is a decrease.

Margin is profit as a share of the selling price; markup is profit as a share of the cost. The margin is always the smaller number.

Percentages, increases and decreases, discounts, margin and markup — in one place.

15.00% of 2,500.00

375.00

Percentage of: percentage divided by 100, multiplied by the amount.

Change: (new − old) ÷ old × 100.

Discount: price × discount ÷ 100 is what you save; the rest is what you pay.

Margin & markup: profit ÷ selling price gives the margin; profit ÷ cost gives the markup.

How do I work out a discount?: Use the Discount tab: enter the original price and the discount percentage to see what you pay and what you save.
How is percentage change calculated?: The difference between the two values divided by the original value, expressed as a percentage. A negative result is a decrease.
What is the difference between margin and markup?: Margin is profit as a share of the selling price; markup is profit as a share of the cost. The margin is always the smaller number.