3.48% is the change from 488 to 505
Calculation steps:
[( 505 - 488 ) ÷ 488] x 100 = 3.48%
Formula
Percentage change = [(505 - 488) / 488] x 100
Subtract the new number by the original number
505 - 488 = 17
17 ÷ 488 = 0.03483606557377049
0.03483606557377049 x 100 = 3.48%