100.45% is the change from 220 to 441
Calculation steps:
[( 441 - 220 ) ÷ 220] x 100 = 100.45%
Formula
Percentage change = [(441 - 220) / 220] x 100
Subtract the new number by the original number
441 - 220 = 221
221 ÷ 220 = 1.0045454545454546
1.0045454545454546 x 100 = 100.45%