81.27% is the change from 331 to 600
Calculation steps:
[( 600 - 331 ) ÷ 331] x 100 = 81.27%
Formula
Percentage change = [(600 - 331) / 331] x 100
Subtract the new number by the original number
600 - 331 = 269
269 ÷ 331 = 0.8126888217522659
0.8126888217522659 x 100 = 81.27%