-31.7% is the change from 877 to 599
Calculation steps:
[( 599 - 877 ) ÷ 877] x 100 = -31.7%
Formula
Percentage change = [(599 - 877) / 877] x 100
Subtract the new number by the original number
599 - 877 = -278
-278 ÷ 877 = -0.3169897377423033
-0.3169897377423033 x 100 = -31.7%