-77.95% is the change from 721 to 159
Calculation steps:
[( 159 - 721 ) ÷ 721] x 100 = -77.95%
Formula
Percentage change = [(159 - 721) / 721] x 100
Subtract the new number by the original number
159 - 721 = -562
-562 ÷ 721 = -0.7794729542302358
-0.7794729542302358 x 100 = -77.95%