55.81% is the change from 430 to 670
Calculation steps:
[( 670 - 430 ) ÷ 430] x 100 = 55.81%
Formula
Percentage change = [(670 - 430) / 430] x 100
Subtract the new number by the original number
670 - 430 = 240
240 ÷ 430 = 0.5581395348837209
0.5581395348837209 x 100 = 55.81%