75.68% is the change from 555 to 975
Calculation steps:
[( 975 - 555 ) ÷ 555] x 100 = 75.68%
Formula
Percentage change = [(975 - 555) / 555] x 100
Subtract the new number by the original number
975 - 555 = 420
420 ÷ 555 = 0.7567567567567568
0.7567567567567568 x 100 = 75.68%