52.97% is the change from 438 to 670
Calculation steps:
[( 670 - 438 ) ÷ 438] x 100 = 52.97%
Formula
Percentage change = [(670 - 438) / 438] x 100
Subtract the new number by the original number
670 - 438 = 232
232 ÷ 438 = 0.5296803652968036
0.5296803652968036 x 100 = 52.97%