-77.12% is the change from 721 to 165
Calculation steps:
[( 165 - 721 ) ÷ 721] x 100 = -77.12%
Formula
Percentage change = [(165 - 721) / 721] x 100
Subtract the new number by the original number
165 - 721 = -556
-556 ÷ 721 = -0.7711511789181692
-0.7711511789181692 x 100 = -77.12%