164.2% is the change from 81 to 214
Calculation steps:
[( 214 - 81 ) ÷ 81] x 100 = 164.2%
Formula
Percentage change = [(214 - 81) / 81] x 100
Subtract the new number by the original number
214 - 81 = 133
133 ÷ 81 = 1.6419753086419753
1.6419753086419753 x 100 = 164.2%