86.11% is the change from 504 to 938
Calculation steps:
[( 938 - 504 ) ÷ 504] x 100 = 86.11%
Formula
Percentage change = [(938 - 504) / 504] x 100
Subtract the new number by the original number
938 - 504 = 434
434 ÷ 504 = 0.8611111111111112
0.8611111111111112 x 100 = 86.11%