39000% is the change from 1 to 391
Calculation steps:
[( 391 - 1 ) ÷ 1] x 100 = 39000%
Formula
Percentage change = [(391 - 1) / 1] x 100
Subtract the new number by the original number
391 - 1 = 390
390 ÷ 1 = 390
390 x 100 = 39000%
Example