80.8% is the change from 276 to 499
Calculation steps:
[( 499 - 276 ) ÷ 276] x 100 = 80.8%
Formula
Percentage change = [(499 - 276) / 276] x 100
Subtract the new number by the original number
499 - 276 = 223
223 ÷ 276 = 0.8079710144927537
0.8079710144927537 x 100 = 80.8%