-43.09% is the change from 680 to 387
Calculation steps:
[( 387 - 680 ) ÷ 680] x 100 = -43.09%
Formula
Percentage change = [(387 - 680) / 680] x 100
Subtract the new number by the original number
387 - 680 = -293
-293 ÷ 680 = -0.4308823529411765
-0.4308823529411765 x 100 = -43.09%