377.78% is the change from 9 to 43
Calculation steps:
[( 43 - 9 ) ÷ 9] x 100 = 377.78%
Formula
Percentage change = [(43 - 9) / 9] x 100
Subtract the new number by the original number
43 - 9 = 34
34 ÷ 9 = 3.7777777777777777
3.7777777777777777 x 100 = 377.78%