34.56% is the change from 434 to 584
Calculation steps:
[( 584 - 434 ) ÷ 434] x 100 = 34.56%
Formula
Percentage change = [(584 - 434) / 434] x 100
Subtract the new number by the original number
584 - 434 = 150
150 ÷ 434 = 0.3456221198156682
0.3456221198156682 x 100 = 34.56%