-98.98% is the change from 393 to 4
Calculation steps:
[( 4 - 393 ) ÷ 393] x 100 = -98.98%
Formula
Percentage change = [(4 - 393) / 393] x 100
Subtract the new number by the original number
4 - 393 = -389
-389 ÷ 393 = -0.989821882951654
-0.989821882951654 x 100 = -98.98%