-57.7% is the change from 721 to 305
Calculation steps:
[( 305 - 721 ) ÷ 721] x 100 = -57.7%
Formula
Percentage change = [(305 - 721) / 721] x 100
Subtract the new number by the original number
305 - 721 = -416
-416 ÷ 721 = -0.5769764216366158
-0.5769764216366158 x 100 = -57.7%