329.86% is the change from 221 to 950
Calculation steps:
[( 950 - 221 ) ÷ 221] x 100 = 329.86%
Formula
Percentage change = [(950 - 221) / 221] x 100
Subtract the new number by the original number
950 - 221 = 729
729 ÷ 221 = 3.2986425339366514
3.2986425339366514 x 100 = 329.86%