-28.38% is the change from 680 to 487
Calculation steps:
[( 487 - 680 ) ÷ 680] x 100 = -28.38%
Formula
Percentage change = [(487 - 680) / 680] x 100
Subtract the new number by the original number
487 - 680 = -193
-193 ÷ 680 = -0.2838235294117647
-0.2838235294117647 x 100 = -28.38%