71.72% is the change from 488 to 838
Calculation steps:
[( 838 - 488 ) ÷ 488] x 100 = 71.72%
Formula
Percentage change = [(838 - 488) / 488] x 100
Subtract the new number by the original number
838 - 488 = 350
350 ÷ 488 = 0.7172131147540983
0.7172131147540983 x 100 = 71.72%