84.62% is the change from 221 to 408
Calculation steps:
[( 408 - 221 ) ÷ 221] x 100 = 84.62%
Formula
Percentage change = [(408 - 221) / 221] x 100
Subtract the new number by the original number
408 - 221 = 187
187 ÷ 221 = 0.8461538461538461
0.8461538461538461 x 100 = 84.62%