80.88% is the change from 502 to 908
Calculation steps:
[( 908 - 502 ) ÷ 502] x 100 = 80.88%
Formula
Percentage change = [(908 - 502) / 502] x 100
Subtract the new number by the original number
908 - 502 = 406
406 ÷ 502 = 0.8087649402390438
0.8087649402390438 x 100 = 80.88%