-4.93% is the change from 669 to 636
Calculation steps:
[( 636 - 669 ) ÷ 669] x 100 = -4.93%
Formula
Percentage change = [(636 - 669) / 669] x 100
Subtract the new number by the original number
636 - 669 = -33
-33 ÷ 669 = -0.04932735426008968
-0.04932735426008968 x 100 = -4.93%