-89.74% is the change from 721 to 74
Calculation steps:
[( 74 - 721 ) ÷ 721] x 100 = -89.74%
Formula
Percentage change = [(74 - 721) / 721] x 100
Subtract the new number by the original number
74 - 721 = -647
-647 ÷ 721 = -0.897364771151179
-0.897364771151179 x 100 = -89.74%