39500% is the change from 1 to 396
Calculation steps:
[( 396 - 1 ) ÷ 1] x 100 = 39500%
Formula
Percentage change = [(396 - 1) / 1] x 100
Subtract the new number by the original number
396 - 1 = 395
395 ÷ 1 = 395
395 x 100 = 39500%
Example