202.74% is the change from 73 to 221
Calculation steps:
[( 221 - 73 ) ÷ 73] x 100 = 202.74%
Formula
Percentage change = [(221 - 73) / 73] x 100
Subtract the new number by the original number
221 - 73 = 148
148 ÷ 73 = 2.0273972602739727
2.0273972602739727 x 100 = 202.74%