-34.89% is the change from 877 to 571
Calculation steps:
[( 571 - 877 ) ÷ 877] x 100 = -34.89%
Formula
Percentage change = [(571 - 877) / 877] x 100
Subtract the new number by the original number
571 - 877 = -306
-306 ÷ 877 = -0.34891676168757124
-0.34891676168757124 x 100 = -34.89%