100% is the change from 91 to 182
Calculation steps:
[( 182 - 91 ) ÷ 91] x 100 = 100%
Formula
Percentage change = [(182 - 91) / 91] x 100
Subtract the new number by the original number
182 - 91 = 91
91 ÷ 91 = 1
1 x 100 = 100%
Example