-59.56% is the change from 680 to 275
Calculation steps:
[( 275 - 680 ) ÷ 680] x 100 = -59.56%
Formula
Percentage change = [(275 - 680) / 680] x 100
Subtract the new number by the original number
275 - 680 = -405
-405 ÷ 680 = -0.5955882352941176
-0.5955882352941176 x 100 = -59.56%