-99.75% is the change from 396 to 1
Calculation steps:
[( 1 - 396 ) ÷ 396] x 100 = -99.75%
Formula
Percentage change = [(1 - 396) / 396] x 100
Subtract the new number by the original number
1 - 396 = -395
-395 ÷ 396 = -0.9974747474747475
-0.9974747474747475 x 100 = -99.75%
Example