66.17% is the change from 133 to 221
Calculation steps:
[( 221 - 133 ) ÷ 133] x 100 = 66.17%
Formula
Percentage change = [(221 - 133) / 133] x 100
Subtract the new number by the original number
221 - 133 = 88
88 ÷ 133 = 0.6616541353383458
0.6616541353383458 x 100 = 66.17%