86.71% is the change from 331 to 618
Calculation steps:
[( 618 - 331 ) ÷ 331] x 100 = 86.71%
Formula
Percentage change = [(618 - 331) / 331] x 100
Subtract the new number by the original number
618 - 331 = 287
287 ÷ 331 = 0.8670694864048338
0.8670694864048338 x 100 = 86.71%