17.13% is the change from 181 to 212
Calculation steps:
[( 212 - 181 ) ÷ 181] x 100 = 17.13%
Formula
Percentage change = [(212 - 181) / 181] x 100
Subtract the new number by the original number
212 - 181 = 31
31 ÷ 181 = 0.1712707182320442
0.1712707182320442 x 100 = 17.13%