3940% is the change from 10 to 404
Calculation steps:
[( 404 - 10 ) ÷ 10] x 100 = 3940%
Formula
Percentage change = [(404 - 10) / 10] x 100
Subtract the new number by the original number
404 - 10 = 394
394 ÷ 10 = 39.4
39.4 x 100 = 3940%
Example