-79.75% is the change from 721 to 146
Calculation steps:
[( 146 - 721 ) ÷ 721] x 100 = -79.75%
Formula
Percentage change = [(146 - 721) / 721] x 100
Subtract the new number by the original number
146 - 721 = -575
-575 ÷ 721 = -0.79750346740638
-0.79750346740638 x 100 = -79.75%