-18.07% is the change from 880 to 721
Calculation steps:
[( 721 - 880 ) ÷ 880] x 100 = -18.07%
Formula
Percentage change = [(721 - 880) / 880] x 100
Subtract the new number by the original number
721 - 880 = -159
-159 ÷ 880 = -0.1806818181818182
-0.1806818181818182 x 100 = -18.07%