33.85% is the change from 387 to 518
Calculation steps:
[( 518 - 387 ) ÷ 387] x 100 = 33.85%
Formula
Percentage change = [(518 - 387) / 387] x 100
Subtract the new number by the original number
518 - 387 = 131
131 ÷ 387 = 0.3385012919896641
0.3385012919896641 x 100 = 33.85%