80.36% is the change from 499 to 900
Calculation steps:
[( 900 - 499 ) ÷ 499] x 100 = 80.36%
Formula
Percentage change = [(900 - 499) / 499] x 100
Subtract the new number by the original number
900 - 499 = 401
401 ÷ 499 = 0.8036072144288577
0.8036072144288577 x 100 = 80.36%