-53.71% is the change from 877 to 406
Calculation steps:
[( 406 - 877 ) ÷ 877] x 100 = -53.71%
Formula
Percentage change = [(406 - 877) / 877] x 100
Subtract the new number by the original number
406 - 877 = -471
-471 ÷ 877 = -0.5370581527936146
-0.5370581527936146 x 100 = -53.71%