-62.65% is the change from 680 to 254
Calculation steps:
[( 254 - 680 ) ÷ 680] x 100 = -62.65%
Formula
Percentage change = [(254 - 680) / 680] x 100
Subtract the new number by the original number
254 - 680 = -426
-426 ÷ 680 = -0.6264705882352941
-0.6264705882352941 x 100 = -62.65%