-89.95% is the change from 388 to 39
Calculation steps:
[( 39 - 388 ) ÷ 388] x 100 = -89.95%
Formula
Percentage change = [(39 - 388) / 388] x 100
Subtract the new number by the original number
39 - 388 = -349
-349 ÷ 388 = -0.8994845360824743
-0.8994845360824743 x 100 = -89.95%