80.49% is the change from 287 to 518
Calculation steps:
[( 518 - 287 ) ÷ 287] x 100 = 80.49%
Formula
Percentage change = [(518 - 287) / 287] x 100
Subtract the new number by the original number
518 - 287 = 231
231 ÷ 287 = 0.8048780487804879
0.8048780487804879 x 100 = 80.49%