377.78% is the change from 90 to 430
Calculation steps:
[( 430 - 90 ) ÷ 90] x 100 = 377.78%
Formula
Percentage change = [(430 - 90) / 90] x 100
Subtract the new number by the original number
430 - 90 = 340
340 ÷ 90 = 3.7777777777777777
3.7777777777777777 x 100 = 377.78%