4300% is the change from 9 to 396
Calculation steps:
[( 396 - 9 ) ÷ 9] x 100 = 4300%
Formula
Percentage change = [(396 - 9) / 9] x 100
Subtract the new number by the original number
396 - 9 = 387
387 ÷ 9 = 43
43 x 100 = 4300%
Example