-97.96% is the change from 392 to 8
Calculation steps:
[( 8 - 392 ) ÷ 392] x 100 = -97.96%
Formula
Percentage change = [(8 - 392) / 392] x 100
Subtract the new number by the original number
8 - 392 = -384
-384 ÷ 392 = -0.9795918367346939
-0.9795918367346939 x 100 = -97.96%