32.17% is the change from 488 to 645
Calculation steps:
[( 645 - 488 ) ÷ 488] x 100 = 32.17%
Formula
Percentage change = [(645 - 488) / 488] x 100
Subtract the new number by the original number
645 - 488 = 157
157 ÷ 488 = 0.32172131147540983
0.32172131147540983 x 100 = 32.17%