387.64% is the change from 89 to 434
Calculation steps:
[( 434 - 89 ) ÷ 89] x 100 = 387.64%
Formula
Percentage change = [(434 - 89) / 89] x 100
Subtract the new number by the original number
434 - 89 = 345
345 ÷ 89 = 3.8764044943820224
3.8764044943820224 x 100 = 387.64%