-19.98% is the change from 901 to 721
Calculation steps:
[( 721 - 901 ) ÷ 901] x 100 = -19.98%
Formula
Percentage change = [(721 - 901) / 901] x 100
Subtract the new number by the original number
721 - 901 = -180
-180 ÷ 901 = -0.1997780244173141
-0.1997780244173141 x 100 = -19.98%