45.7% is the change from 221 to 322
Calculation steps:
[( 322 - 221 ) ÷ 221] x 100 = 45.7%
Formula
Percentage change = [(322 - 221) / 221] x 100
Subtract the new number by the original number
322 - 221 = 101
101 ÷ 221 = 0.45701357466063347
0.45701357466063347 x 100 = 45.7%