-99.24% is the change from 394 to 3
Calculation steps:
[( 3 - 394 ) ÷ 394] x 100 = -99.24%
Formula
Percentage change = [(3 - 394) / 394] x 100
Subtract the new number by the original number
3 - 394 = -391
-391 ÷ 394 = -0.9923857868020305
-0.9923857868020305 x 100 = -99.24%