-6.35% is the change from 488 to 457
Calculation steps:
[( 457 - 488 ) ÷ 488] x 100 = -6.35%
Formula
Percentage change = [(457 - 488) / 488] x 100
Subtract the new number by the original number
457 - 488 = -31
-31 ÷ 488 = -0.06352459016393443
-0.06352459016393443 x 100 = -6.35%