-26.23% is the change from 877 to 647
Calculation steps:
[( 647 - 877 ) ÷ 877] x 100 = -26.23%
Formula
Percentage change = [(647 - 877) / 877] x 100
Subtract the new number by the original number
647 - 877 = -230
-230 ÷ 877 = -0.26225769669327254
-0.26225769669327254 x 100 = -26.23%