-74.8% is the change from 877 to 221
Calculation steps:
[( 221 - 877 ) ÷ 877] x 100 = -74.8%
Formula
Percentage change = [(221 - 877) / 877] x 100
Subtract the new number by the original number
221 - 877 = -656
-656 ÷ 877 = -0.7480045610034207
-0.7480045610034207 x 100 = -74.8%