79.76% is the change from 504 to 906
Calculation steps:
[( 906 - 504 ) ÷ 504] x 100 = 79.76%
Formula
Percentage change = [(906 - 504) / 504] x 100
Subtract the new number by the original number
906 - 504 = 402
402 ÷ 504 = 0.7976190476190477
0.7976190476190477 x 100 = 79.76%