337.1% is the change from 221 to 966
Calculation steps:
[( 966 - 221 ) ÷ 221] x 100 = 337.1%
Formula
Percentage change = [(966 - 221) / 221] x 100
Subtract the new number by the original number
966 - 221 = 745
745 ÷ 221 = 3.3710407239819005
3.3710407239819005 x 100 = 337.1%