You can use these calculators to calculate the cost performance index (CPI), average cost, construction cost, smoking cost, discount, and more..

Cost Performance Index CPI Equations Formulas Calculator
Solving for cost performance index (CPI).

Sale Discount Price Shopping Calculator - Percent Off Saving
The page provides a shopping calculator to determine the final or discounted price after the percent off discount is applied.

Average Cost Calculator | StockRants
You can use an average cost calculator to determine the average share price you paid for a security with multiple buys. This can be handy when averaging in on a stock purchase or determining your cost basis.

Calculators | State Farm
"How much am I spending?" allows you to enter actual and desired amounts for various expenses, and shows a table illustrating any excess amount available for investment.

Construction cost calculator/estimator for new houses, renovations & additions/extensions
New homes, renovations & additions or extensions. This construction cost calculator only gives an estimate of building costs. It is only suitable for use before any detailed plans are drawn.

PCB Cost Comparison Calculator
This is a quick calculator for the most popular PCB manufacturers for prototype PCBs.

Smoking Cost Calculator
Use our calculator to see how much cigarettes cost you.