193.21% is the change from 221 to 648
Calculation steps:
[( 648 - 221 ) ÷ 221] x 100 = 193.21%
Formula
Percentage change = [(648 - 221) / 221] x 100
Subtract the new number by the original number
648 - 221 = 427
427 ÷ 221 = 1.9321266968325792
1.9321266968325792 x 100 = 193.21%