242.02% is the change from 188 to 643
Calculation steps:
[( 643 - 188 ) ÷ 188] x 100 = 242.02%
Formula
Percentage change = [(643 - 188) / 188] x 100
Subtract the new number by the original number
643 - 188 = 455
455 ÷ 188 = 2.4202127659574466
2.4202127659574466 x 100 = 242.02%