Spike's Calculators

# Bargain Hunting

Is it worth your Time and Money?

You go grocery shopping at your favourite store, but then your husband points out that his favourite beer is 4 dollars cheaper if you buy it at another store. How much will it cost on fuel to buy cheaper-priced items at another location?

Average Miles per Gallon mi/gal US
Price per Gallon of Fuel \$/gal US
Distance; Home to Store A mi
Distance; Store A to Store B mi
Distance; Store B to Home mi
Money Saved on Purchase(es) \$

#### Results:

 Driving Cost per Mile \$ Trip Cost; Home to Location A \$ Trip Cost; Home to Locations A + B \$ Amount you Saved (Negative = Loss) \$

#### Calculation

1. average miles per gallon of your vehicle
2. price of one gallon of gas
3. distance, home to store A
4. distance from store A to B
5. distance from store B to home
6. a price difference of item(s) that makes you go to store B (money you save on the product(s))

#### Results

1. cost of fuel driving one mile
2. fuel cost for a shopping trip at store A
3. fuel cost including store B in your shopping trip
4. savings (a negative amount = loss)
##### Example
```Your average miles per gallon is 24
The price of one gallon of fuel is \$3.84
Distance from home to store A is 9.6 miles
Distance from store A to store B is 3.6 miles
The distance from store B to home is 11.4 miles
Going to a different store because the items are cheaper saves you \$1.85
```

`First, calculate fuel cost per mile;`
`3.84 ÷ 24 = 0.16`
`It cost 0.16 to drive one mile.`

`Calculate the cost of gas to drive to store A`
`9.6 * 0.16 = 1.536`
`The cost of fuel driving from home to location A is \$1.54`

##### If you purchase all your items at location A, the total cost in fuel will be 2 * 1.54 = \$3.08.

`Calculate the cost of driving from location A to B;`
`3.6 * 0.16 = 0.576`
`The fuel cost for driving from A to B is \$0.58`

`Calculate the cost of driving from location B to home;`
`11.4 * 0.16 = 1.824`
`The cost of gas for returning home from location B is \$1.83.`

Including location B in your trip will cost a total of 1.54 + 0.58 + 1.83 = \$3.95 in gas,
adding 3.95 - 3.08 = \$0.87 to the gas cost.