-79.61% is the change from 721 to 147
Calculation steps:
[( 147 - 721 ) ÷ 721] x 100 = -79.61%
Formula
Percentage change = [(147 - 721) / 721] x 100
Subtract the new number by the original number
147 - 721 = -574
-574 ÷ 721 = -0.7961165048543689
-0.7961165048543689 x 100 = -79.61%