-28.02% is the change from 678 to 488
Calculation steps:
[( 488 - 678 ) ÷ 678] x 100 = -28.02%
Formula
Percentage change = [(488 - 678) / 678] x 100
Subtract the new number by the original number
488 - 678 = -190
-190 ÷ 678 = -0.28023598820059
-0.28023598820059 x 100 = -28.02%