8.54% is the change from 913 to 991
Calculation steps:
[( 991 - 913 ) ÷ 913] x 100 = 8.54%
Formula
Percentage change = [(991 - 913) / 913] x 100
Subtract the new number by the original number
991 - 913 = 78
78 ÷ 913 = 0.08543263964950712
0.08543263964950712 x 100 = 8.54%