- The percentage of an amount:<br/>Calculating the percentage of an amount is a common task in many fields. For example, if you want to calculate the sales tax on a purchase, you need to know the percentage of the tax and the amount of the purchase. To do this, you can use the percentage calculator app by entering the amount and the percentage you want to calculate. For instance, if you want to calculate 10% of 200$, you can enter 200 as the initial value and 10 as the percentage. The app will then calculate the result, which is 20$.<br/><br/>- Tips for using the app:<br/>The percentage calculator app is easy to use and can be used for various purposes. You can use it to calculate discounts, markups, tips, and many other percentage-related calculations. To get the most out of the app, you can use the advanced mode, which allows you to make custom percentage calculations. You can also switch between percentage increase and decrease by pressing the grey square. If you find the app helpful, you can leave a comment to let the developers know.<br/><br/>- Conclusion:<br/>The percentage calculator app is a useful tool for anyone who needs to calculate percentages quickly and accurately. It offers three types of percentage calculations, including percentage increase, percentage decrease, and the percentage of an amount. The app is easy to use and can be used without moderation during sales, in progress, or at work. If you want to make custom percentage calculations, you can use the advanced mode. Overall, the percentage calculator app is a must-have tool for anyone who deals with percentages on a regular basis.