8.2% is the change from 488 to 528
Calculation steps:
[( 528 - 488 ) ÷ 488] x 100 = 8.2%
Formula
Percentage change = [(528 - 488) / 488] x 100
Subtract the new number by the original number
528 - 488 = 40
40 ÷ 488 = 0.08196721311475409
0.08196721311475409 x 100 = 8.2%