83.27% is the change from 508 to 931
Calculation steps:
[( 931 - 508 ) ÷ 508] x 100 = 83.27%
Formula
Percentage change = [(931 - 508) / 508] x 100
Subtract the new number by the original number
931 - 508 = 423
423 ÷ 508 = 0.8326771653543307
0.8326771653543307 x 100 = 83.27%