32.38% is the change from 488 to 646
Calculation steps:
[( 646 - 488 ) ÷ 488] x 100 = 32.38%
Formula
Percentage change = [(646 - 488) / 488] x 100
Subtract the new number by the original number
646 - 488 = 158
158 ÷ 488 = 0.3237704918032787
0.3237704918032787 x 100 = 32.38%