Basic calculations
Percentages
Percentage of a number, percentage change, discounts and markups.
Basic calculations
Percentage of a number
R = N × P / 100→Basic calculationsWhat percentage is one number of another
P = A / B × 100%→Basic calculationsIncrease a number by a percentage
R = N × (1 + P / 100)→Basic calculationsDecrease a number by a percentage
R = N × (1 − P / 100)→Basic calculationsPercentage change
Δ% = (B − A) / A × 100%→Basic calculationsDiscount price
R = C × (1 − D / 100)→Basic calculationsPrice with markup
R = C × (1 + M / 100)→