47.93% is the change from 434 to 642
Calculation steps:
[( 642 - 434 ) ÷ 434] x 100 = 47.93%
Formula
Percentage change = [(642 - 434) / 434] x 100
Subtract the new number by the original number
642 - 434 = 208
208 ÷ 434 = 0.4792626728110599
0.4792626728110599 x 100 = 47.93%