Percent & Finance Calc Pro
Discount, VAT, Margin & Tips
Discounts, VAT, margin, tips and growth, with the formula shown for every result.
A percentage calculator app gives the answer to a percent question in one step. Percent & Finance Calc Pro covers discounts, VAT, tips, profit margin and percentage increase, and it shows the formula behind each result.
Percent & Finance Calc Pro screenshots
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What Percent & Finance Calc Pro does
Most percent questions come up in shops, offices and bills. You want the sale price, the VAT on an invoice, or the real size of a salary rise. Percent & Finance Calc Pro is a percentage calculator app for iPhone that answers these questions from one set of inputs. Each calculator is built for one real question.
The app holds 32 calculations. The free version includes basic percentages, percentage change, simple interest and compound interest. Pro adds the business tools, such as discounts, VAT, markup and margin, and the finance tools, such as effective annual rate and real return after inflation.
Every result explains itself. The app shows the formula with lettered inputs, so you can check the working yourself. Results update as you type, and you can copy or share any result in one tap. Negative values, such as losses and decreases, take one tap.
Your figures stay on your iPhone. The app has no account, no ads and no tracking, and every calculation runs on the device. Your history is saved on the phone, and you can clear it inside the app at any time. Results are arithmetic, so check any figure that matters with your bank or accountant.
Features
Percentage basics
- Find what X percent of a number is, for example 15 percent of 240.
- Work out what percent one number is of another.
- Find the whole from a part and its percentage.
Percentage change
- Calculate the percentage increase or decrease between two values.
- Find the value before a change, such as the price before a 20 percent rise.
- Loss recovery: a 50 percent drop needs a 100 percent rise to return.
- Percent error between an estimate and the real value.
Business and pricing (Pro)
- Discounts by percentage or fixed amount, and the original price before a discount.
- Stacked discounts: 30 percent and 20 percent together give 44 percent off, not 50 percent.
- Add or remove VAT, and split the VAT out of a total.
- Profit margin, markup, and the price for a target margin.
- Commission, tips and a bill split per person.
Finance (Pro)
- Compound annual growth rate (CAGR) over several years.
- Effective annual rate: 3 percent a month is 42.58 percent a year.
- Real return after inflation and purchasing power over time.
- Loan amortization table with CSV export.
Favorites and history
- Star any calculation to pin it to the top of the home screen.
- Your most used calculations appear automatically.
- Search all calculations by name.
- Save a calculation with its values and open it again in one tap.
Who it is for
- Good for shoppers who check sale prices and stacked discounts.
- Good for small business owners who set prices, VAT and margins.
- Good for freelancers who quote tips, commission or net amounts.
- Good for students who are learning percentages and interest.
- Good for anyone who compares percentage changes in money, pay or savings.
Privacy
All calculations run on your device. The app has no account, no ads, no tracking and no server, and your history and favorites stay on the phone.
Read the Percent & Finance Calc Pro privacy policyPrice
The app is free to download. Pro is a monthly or yearly subscription, or a one-time lifetime purchase, and the yearly plan can include a free trial for eligible new subscribers. Apple handles all purchases.
Terms of usePercent & Finance Calc Pro questions, answered
How do I calculate a percentage increase?
Subtract the old value from the new value, divide the result by the old value, then multiply by 100. Going from 80 to 100 is (100 minus 80) divided by 80, times 100, which equals 25 percent. The app does this step for you and shows the formula with each result.
Why is a 20 percent cut followed by a 20 percent rise not back to the start?
Each percentage uses a different base. A 20 percent cut on 100 gives 80. A 20 percent rise on 80 gives 96, not 100. To return to 100 after a 20 percent drop, you need a rise of 25 percent, because 80 times 1.25 equals 100.
Is 30 percent off plus 20 percent off the same as 50 percent off?
No. Two stacked discounts multiply. On a 100 item, 30 percent off gives 70, and 20 percent off that gives 56. The total discount is 44 percent, not 50 percent. The stacked discount calculator applies both rates in order.
How do I remove VAT from a price that already includes it?
Divide the gross price by 1 plus the VAT rate. A price of 120 with 20 percent VAT has a net price of 120 divided by 1.20, which equals 100, so the VAT is 20. Do not subtract 20 percent from 120, because that gives 96. VAT rates differ by country, so use the rate that applies to you.
What is the difference between profit margin and markup?
Margin divides profit by the selling price. Markup divides profit by the cost. With a cost of 60 and a price of 100, the profit is 40, the margin is 40 percent and the markup is 66.7 percent.
Is this app financial advice?
No. Results are arithmetic. Tax, interest and inflation rules vary by country and change over time. Check any figure that matters with your bank, accountant or tax authority before you act on it.
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Get Percent & Finance Calc Pro free.
Free on the App Store for iPhone and iPad (iOS 17.0 or later). Android is coming soon.
