-86.05% is the change from 387 to 54
Calculation steps:
[( 54 - 387 ) ÷ 387] x 100 = -86.05%
Formula
Percentage change = [(54 - 387) / 387] x 100
Subtract the new number by the original number
54 - 387 = -333
-333 ÷ 387 = -0.8604651162790697
-0.8604651162790697 x 100 = -86.05%