83.08% is the change from 331 to 606
Calculation steps:
[( 606 - 331 ) ÷ 331] x 100 = 83.08%
Formula
Percentage change = [(606 - 331) / 331] x 100
Subtract the new number by the original number
606 - 331 = 275
275 ÷ 331 = 0.8308157099697885
0.8308157099697885 x 100 = 83.08%