83.69% is the change from 331 to 608
Calculation steps:
[( 608 - 331 ) ÷ 331] x 100 = 83.69%
Formula
Percentage change = [(608 - 331) / 331] x 100
Subtract the new number by the original number
608 - 331 = 277
277 ÷ 331 = 0.8368580060422961
0.8368580060422961 x 100 = 83.69%