-89.12% is the change from 386 to 42
Calculation steps:
[( 42 - 386 ) ÷ 386] x 100 = -89.12%
Formula
Percentage change = [(42 - 386) / 386] x 100
Subtract the new number by the original number
42 - 386 = -344
-344 ÷ 386 = -0.8911917098445595
-0.8911917098445595 x 100 = -89.12%