It comes down to two ways to measure change: absolute (additive) difference and relative (multiplicative) difference. Additive: “The price went up 200%”

It comes down to two ways to measure change: absolute (additive) difference and relative (multiplicative) difference. Additive: “The price went up 200%” New price = 100% + 200% = 300% (1.00 + 2.00 = 3.00) Multiplicative: “The price is 300% of the original” New price = 100% x 300% = 300% (1.00 x 3.00 = 3.00)