-77.53% is the change from 721 to 162
Calculation steps:
[( 162 - 721 ) ÷ 721] x 100 = -77.53%
Formula
Percentage change = [(162 - 721) / 721] x 100
Subtract the new number by the original number
162 - 721 = -559
-559 ÷ 721 = -0.7753120665742025
-0.7753120665742025 x 100 = -77.53%