9.11% is the change from 878 to 958
Calculation steps:
[( 958 - 878 ) ÷ 878] x 100 = 9.11%
Formula
Percentage change = [(958 - 878) / 878] x 100
Subtract the new number by the original number
958 - 878 = 80
80 ÷ 878 = 0.09111617312072894
0.09111617312072894 x 100 = 9.11%