39.64% is the change from 555 to 775
Calculation steps:
[( 775 - 555 ) ÷ 555] x 100 = 39.64%
Formula
Percentage change = [(775 - 555) / 555] x 100
Subtract the new number by the original number
775 - 555 = 220
220 ÷ 555 = 0.3963963963963964
0.3963963963963964 x 100 = 39.64%