78.69% is the change from 502 to 897
Calculation steps:
[( 897 - 502 ) ÷ 502] x 100 = 78.69%
Formula
Percentage change = [(897 - 502) / 502] x 100
Subtract the new number by the original number
897 - 502 = 395
395 ÷ 502 = 0.7868525896414342
0.7868525896414342 x 100 = 78.69%