Calculations of List and Net Prices with Discounts

•L = List price.

•N = Net price.

•D = Discount(%).

D' = 1 –

 

---------D

 

 

 

 

 

 

100

 

 

•

 

 

 

 

 

 

 

L = D--------------------------------------------------'

 

 

 

 

N

 

1

⋅ D'

2

⋅ SS... D’DF

 

 

 

 

x

 

•

 

 

 

 

 

 

 

 

 

 

 

N

Dx =

1

– L-------------------------------------------------------------(D1⋅ D2 ⋅ DD... ⋅ DX – 1)

Statistics

Exponential Curve Fit

•y = AeBx

Σxi lnyi

 

1

(Σxi)(Σlnyi)

– n--

B = -----------------------------------------------------------

2

 

1

 

2 -

Σxi

 

(Σxi)

 

– n--

 

•

A

= exp

 

Σ lnyi

– B

Σxi

 

 

------------n-

-------n

 

 

 

 

• = -AeBx

Logarithmic Curve Fit

•y = A + B(ln x)

159