-2.05% is the change from 488 to 478
Calculation steps:
[( 478 - 488 ) ÷ 488] x 100 = -2.05%
Formula
Percentage change = [(478 - 488) / 488] x 100
Subtract the new number by the original number
478 - 488 = -10
-10 ÷ 488 = -0.020491803278688523
-0.020491803278688523 x 100 = -2.05%