169.51% is the change from 82 to 221
Calculation steps:
[( 221 - 82 ) ÷ 82] x 100 = 169.51%
Formula
Percentage change = [(221 - 82) / 82] x 100
Subtract the new number by the original number
221 - 82 = 139
139 ÷ 82 = 1.6951219512195121
1.6951219512195121 x 100 = 169.51%