83.86% is the change from 502 to 923
Calculation steps:
[( 923 - 502 ) ÷ 502] x 100 = 83.86%
Formula
Percentage change = [(923 - 502) / 502] x 100
Subtract the new number by the original number
923 - 502 = 421
421 ÷ 502 = 0.8386454183266933
0.8386454183266933 x 100 = 83.86%