82.78% is the change from 331 to 605
Calculation steps:
[( 605 - 331 ) ÷ 331] x 100 = 82.78%
Formula
Percentage change = [(605 - 331) / 331] x 100
Subtract the new number by the original number
605 - 331 = 274
274 ÷ 331 = 0.8277945619335347
0.8277945619335347 x 100 = 82.78%