85.2% is the change from 331 to 613
Calculation steps:
[( 613 - 331 ) ÷ 331] x 100 = 85.2%
Formula
Percentage change = [(613 - 331) / 331] x 100
Subtract the new number by the original number
613 - 331 = 282
282 ÷ 331 = 0.851963746223565
0.851963746223565 x 100 = 85.2%