-97.46% is the change from 669 to 17
Calculation steps:
[( 17 - 669 ) ÷ 669] x 100 = -97.46%
Formula
Percentage change = [(17 - 669) / 669] x 100
Subtract the new number by the original number
17 - 669 = -652
-652 ÷ 669 = -0.9745889387144993
-0.9745889387144993 x 100 = -97.46%