Business Analysis

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Author:
karlihill10
ID:
235998
Filename:
Business Analysis
Updated:
2013-09-20 14:57:18
Tags:
BANA Test
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Description:
Business Analysis ~ Test 1
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  1. Percentage Change
    • % Change = (current value - reference value)
    •                            (reference value)
  2. Percent Change - Income
    • % Δ = (It - I0)
    •                      X 100
    •             (I0)
  3. Revenue =
    Revenue = Price  X  Quantity
  4. Own Price Elasticity
    • ε= % Δ Qi                             (Q2 - Q1)   x100
    •                                  OR                (Q1)
    •         % Δ P                                      
    •                                          (P2 - P1)  x100
    •                                             (P1)
  5. Logarithm:

    logb (AB) =
    logb (A) + logb (B)
  6. Logarithm:

    logb (A/B) =
    logb (A) - logb (B)
  7. Logarithm:

    logb (A)n =
    nlogb (A)
  8. Logarithm:

    logb (b) =
    1
  9. Logarithm:

    logb (bA) =
    A
  10. Logarithm:

    blogb(x) =
    X
  11. Logarithm:

    logb (1) =
    0
  12. Logarithm:

    log10 (-200) =
    undefined - no negatives allowed
  13. Logarithm:

    log10 (0) =
    undefined - no zeros allowed
  14. Sigma Notation:

    Σ=x2
    x1 + x2 + x3 + x4 ....
  15. Sigma Notation:

    (Σ=x1)2 =
    (x1 + x2 + x3 + x4 ...)2
  16. Sigma Notation:

    Σ=(x - 1)2 =
    (x1 - 1)2 + (x2 - 1)2 + (x3 - 1)2 + (x4 - 1)2 ....
  17. Sigma Notation:

    Σ=3x2 =

    3(Σx2) =
    ((x1)2 X 3) + ((x2)2 X 3) + ((x3)2 X 3) ...

    3 (x12 + x22 + x32 + x42 ...)
  18. Sigma Notation:

    (Σx)(Σy) =
    (x1 + x2 + x3 + x4 ...)(y1 + y2 + y3 + y4 ...)
  19. Sigma Notation:

    Σ xy =
    (x1y1) + (x2y2) + (x3y3) + (x4y4) ...
  20. Simple Price Index:
    • It = (Pt)
    •                 X 100
    •       (P0)
  21. Aggregate Price Index:
    • It = (ΣPt)
    •                  X 100
    •       (ΣP0)
  22. Weighted Aggregate Index:
    Laspeyres Index

    Puasche Index
  23. CPI:
    • (CPIt)
    • P0   X               = Pt
    •             (CPI0)
  24. Slope-Intercept:
    y = mx + b
  25. Quadratic Formula:
    y = ax2 + bx + c
  26. Vertex:
    • x =    -b                     (-b)
    •                        y = f          
    •         2a                     (2a)
  27. Quadratic Equation:
    • x =      -b ± √b2 - 4ac 
    •                                    
    •                   2a
  28. What steps to follow in a quadratic function:
    • 1.  Find Vertex
    • 2.  Find "y" intercept
    • 3.  (#1, #2) = vertex
  29. How to find intercepts:
    • x =      -b ± √b2 - 4ac                         
    •                                    
    •                    2a
  30. Cost Equation:
    Cost = fixed cost + variable cost
  31. Profit Equation:
    Profit = revenue - cost
  32. Exponential Function:
    y = f(x) = Ab(x)

    • A = starting amount
    • b = change factor (if <1, exponential decay: if >1, exponential growth)
    • x = measure of time
  33. Future Value Equation:
    FV = PV (1 + r)t

    • FV = future value
    • PV = present value
    • r = interest rate
    • t = time
  34. Compounding Future Value:
    FV = PV (1 + r/n)nt

    n = number of times a year
  35. Continuous Compounding Future Value:
    FV = Pert

    • r = interest rate
    • t = time
  36. Instantaneous Rate of Change:
    • Let "h" = x2 - x1
    • x1 + h = x2

    f(x1 + h) - f(x1)
  37. Limit Definition of a Derivative:
    • dy            limit           f(x + h) - f(x)
    •                h = 0                             
    • dx                                    h
  38. Average Rate of Change:
    • 1. Create Table with x1 y1 & x2 y2
    • 2. Calculate - change in y / change in x

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