Suitable for use even in demanding environments
With this water- and dust-resistant calculator, there’s no need to worry about exposure to water, dust, or grime. It is recommended for use even at open-air markets, street stalls, and other outdoor businesses and at shops that sell fresh food.
![Suitable for use even in demanding environments](https://www.casio-intl.com/media/cal/images/practical/waterprotected/wm320mt/img01.jpg)
![Suitable for use even in demanding environments](https://www.casio-intl.com/media/cal/images/practical/waterprotected/wm320mt/img02.jpg)
Easy calculation of cost, selling price and margin.
Cost:
![Suitable for use even in demanding environments](https://www.casio-intl.com/media/cal/images/practical/waterprotected/wm320mt/img06.jpg)
What is the cost of an item that sells for $150 after a 30% margin is added?
Selling Price:
![Suitable for use even in demanding environments](https://www.casio-intl.com/media/cal/images/practical/waterprotected/wm320mt/img07.jpg)
What would the selling price be for an item that costs $120 after a 40% margin is added?
Margin:
![Suitable for use even in demanding environments](https://www.casio-intl.com/media/cal/images/practical/waterprotected/wm320mt/img08.jpg)
What is the margin on an item that costs $1,000 and sells for $2,000?