-98.2% is the change from 667 to 12
Calculation steps:
[( 12 - 667 ) ÷ 667] x 100 = -98.2%
Formula
Percentage change = [(12 - 667) / 667] x 100
Subtract the new number by the original number
12 - 667 = -655
-655 ÷ 667 = -0.9820089955022488
-0.9820089955022488 x 100 = -98.2%