-85.65% is the change from 669 to 96
Calculation steps:
[( 96 - 669 ) ÷ 669] x 100 = -85.65%
Formula
Percentage change = [(96 - 669) / 669] x 100
Subtract the new number by the original number
96 - 669 = -573
-573 ÷ 669 = -0.8565022421524664
-0.8565022421524664 x 100 = -85.65%