-69.2% is the change from 880 to 271
Calculation steps:
[( 271 - 880 ) ÷ 880] x 100 = -69.2%
Formula
Percentage change = [(271 - 880) / 880] x 100
Subtract the new number by the original number
271 - 880 = -609
-609 ÷ 880 = -0.6920454545454545
-0.6920454545454545 x 100 = -69.2%