Consumer mathematics Flashcards
1
Q
( 1 + r )
A
Percentage increase
- r is the percentage as a decimal
2
Q
( 1 - r )
A
Percentage decrease
- r is the percentage as a decimal
3
Q
I = Prt
A
Simple interest (interest)
4
Q
A = P + I
A
Simple interest (amount)
5
Q
I = A - P
A
Compound interest (interest)
6
Q
A = P(1+r/n) ^nt
A
Compound interest (amount)
7
Q
Divide the cost by the unit
A
- Best buy
- Finding the unit rate
8
Q
AUD -> USD
A
Multiply exchange rate
9
Q
USD -> AUD
A
Divide the exchange rate
10
Q
Total cost = cost + brokerage = GST on brokerage
A
Buying shares
11
Q
Revenue = selling price - brokerage- GST on brokerage
A
Selling shares
12
Q
Value X decimal of percentage X number of shares
A
Total value
13
Q
Number or shares X dollars X dividend per share
A
Total dividend
14
Q
Current share price/Annual earnings per share
A
Price - earnings ratio
