167.92% is the change from 240 to 643
Calculation steps:
[( 643 - 240 ) ÷ 240] x 100 = 167.92%
Formula
Percentage change = [(643 - 240) / 240] x 100
Subtract the new number by the original number
643 - 240 = 403
403 ÷ 240 = 1.6791666666666667
1.6791666666666667 x 100 = 167.92%