129.2% is the change from 387 to 887
Calculation steps:
[( 887 - 387 ) ÷ 387] x 100 = 129.2%
Formula
Percentage change = [(887 - 387) / 387] x 100
Subtract the new number by the original number
887 - 387 = 500
500 ÷ 387 = 1.2919896640826873
1.2919896640826873 x 100 = 129.2%