40.05% is the change from 387 to 542
Calculation steps:
[( 542 - 387 ) ÷ 387] x 100 = 40.05%
Formula
Percentage change = [(542 - 387) / 387] x 100
Subtract the new number by the original number
542 - 387 = 155
155 ÷ 387 = 0.4005167958656331
0.4005167958656331 x 100 = 40.05%