-27.92% is the change from 677 to 488
Calculation steps:
[( 488 - 677 ) ÷ 677] x 100 = -27.92%
Formula
Percentage change = [(488 - 677) / 677] x 100
Subtract the new number by the original number
488 - 677 = -189
-189 ÷ 677 = -0.2791728212703102
-0.2791728212703102 x 100 = -27.92%