-96.41% is the change from 669 to 24
Calculation steps:
[( 24 - 669 ) ÷ 669] x 100 = -96.41%
Formula
Percentage change = [(24 - 669) / 669] x 100
Subtract the new number by the original number
24 - 669 = -645
-645 ÷ 669 = -0.9641255605381166
-0.9641255605381166 x 100 = -96.41%