-99.25% is the change from 667 to 5
Calculation steps:
[( 5 - 667 ) ÷ 667] x 100 = -99.25%
Formula
Percentage change = [(5 - 667) / 667] x 100
Subtract the new number by the original number
5 - 667 = -662
-662 ÷ 667 = -0.992503748125937
-0.992503748125937 x 100 = -99.25%