18.54% is the change from 836 to 991
Calculation steps:
[( 991 - 836 ) ÷ 836] x 100 = 18.54%
Formula
Percentage change = [(991 - 836) / 836] x 100
Subtract the new number by the original number
991 - 836 = 155
155 ÷ 836 = 0.1854066985645933
0.1854066985645933 x 100 = 18.54%