-98.24% is the change from 680 to 12
Calculation steps:
[( 12 - 680 ) ÷ 680] x 100 = -98.24%
Formula
Percentage change = [(12 - 680) / 680] x 100
Subtract the new number by the original number
12 - 680 = -668
-668 ÷ 680 = -0.9823529411764705
-0.9823529411764705 x 100 = -98.24%