176.47% is the change from 221 to 611
Calculation steps:
[( 611 - 221 ) ÷ 221] x 100 = 176.47%
Formula
Percentage change = [(611 - 221) / 221] x 100
Subtract the new number by the original number
611 - 221 = 390
390 ÷ 221 = 1.7647058823529411
1.7647058823529411 x 100 = 176.47%