User Manual

90 APPENDIX - Reference Information
Interest Rate Conversions
where: x =.01 Q NOM P C Y
where: x =.01 Q EFF
Percent Change
where: OLD =old value
NEW =new value
%CH =percent change
#PD =number of periods
Profit Margin
Breakeven
PFT = P Q N (FC + VC Q)
where:
PFT =profit
P =price
FC =fixed cost
b
nxy

 y

x

–
n 2
x

 x


2
–
---------------------------------------------------------
=
a
y

bx

–
n
---------------------------------
=
r
b
x

y
------ -
=
EFF 100 e
CY In x 1
 1–=
NOM 100 CY e
1 CY In

x 1+
1–=
NEW OLD 1
%CH
100
-------------
+


#PD
=
Gross Profit Margin
Selling Price Cost–
Selling Price
------------------------------------------------
100=