82.48% is the change from 331 to 604
Calculation steps:
[( 604 - 331 ) ÷ 331] x 100 = 82.48%
Formula
Percentage change = [(604 - 331) / 331] x 100
Subtract the new number by the original number
604 - 331 = 273
273 ÷ 331 = 0.824773413897281
0.824773413897281 x 100 = 82.48%