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Percent Calculator

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Inspired by the iOS touch interface in early 2008, Nolan Piper began working with ideas to make math more engaging and visual. Ten apps were developed and launched, and Percent Calculator was an early favorite. With customer feedback and many early updates, it gained function and refinement to become a powerful business/sales calculator.

Percents

Percents - Main

Margins

Percents - Cost/Sell/Profit/Margin

Lists

Percents - List

Featuring one-touch percent keys, one-touch programming, Sell-Cost-Profit-Margin (enter any 2), percent change and more, this business app facilitates quick calculations and effective analysis. It is ideal for anyone in sales.

Touch the display to see a list of recent calculations.


Additional Features:

1) 3-line main display, visible memory, and bar-graphed results.

2) A% allows positive or negative settings for mark-ups / discounts.

3) Tax supports split taxes and minus tax (to extract the original and tax from a total).

4) Sell-Cost-Profit-Margin includes margin bump buttons and scaling factors for results.

Get more with every calculation.


Available on the iTunes App Store.

Link to iTunes Preview

Legacy Apps

2008 - 2016 Highlights


Active RPN

Active RPN

RPN Calculator

Kids Calculator

Kids Calculator

Learning Calculator

Ratios

Ratios

Comparison Calculator

Polar Sweep

Polar Sweep

Trig Calculator

Quickmetric

Quickmetric

Conversion Calculator

Fractionator

Fractionator

Fractions Explorer

The Percent Calculator has been refreshed, and work on other apps is starting. There is much work to be done, but it will be fun. Thank you for your interest in my apps.


CONTACT

Questions or fan mail? Drop me a note!

nolanpiper@icloud.com

nolanpiper@icloud.com