-85.79% is the change from 387 to 55
Calculation steps:
[( 55 - 387 ) ÷ 387] x 100 = -85.79%
Formula
Percentage change = [(55 - 387) / 387] x 100
Subtract the new number by the original number
55 - 387 = -332
-332 ÷ 387 = -0.8578811369509044
-0.8578811369509044 x 100 = -85.79%