-8.42% is the change from 891 to 816
Calculation steps:
[( 816 - 891 ) ÷ 891] x 100 = -8.42%
Formula
Percentage change = [(816 - 891) / 891] x 100
Subtract the new number by the original number
816 - 891 = -75
-75 ÷ 891 = -0.08417508417508418
-0.08417508417508418 x 100 = -8.42%