-5.69% is the change from 931 to 878
Calculation steps:
[( 878 - 931 ) ÷ 931] x 100 = -5.69%
Formula
Percentage change = [(878 - 931) / 931] x 100
Subtract the new number by the original number
878 - 931 = -53
-53 ÷ 931 = -0.05692803437164339
-0.05692803437164339 x 100 = -5.69%