152.16% is the change from 255 to 643
Calculation steps:
[( 643 - 255 ) ÷ 255] x 100 = 152.16%
Formula
Percentage change = [(643 - 255) / 255] x 100
Subtract the new number by the original number
643 - 255 = 388
388 ÷ 255 = 1.5215686274509803
1.5215686274509803 x 100 = 152.16%