86.31% is the change from 504 to 939
Calculation steps:
[( 939 - 504 ) ÷ 504] x 100 = 86.31%
Formula
Percentage change = [(939 - 504) / 504] x 100
Subtract the new number by the original number
939 - 504 = 435
435 ÷ 504 = 0.8630952380952381
0.8630952380952381 x 100 = 86.31%