26.82% is the change from 507 to 643
Calculation steps:
[( 643 - 507 ) ÷ 507] x 100 = 26.82%
Formula
Percentage change = [(643 - 507) / 507] x 100
Subtract the new number by the original number
643 - 507 = 136
136 ÷ 507 = 0.2682445759368836
0.2682445759368836 x 100 = 26.82%