MoneyToys Average Interest Rate Calculat - Version 2.1.1 Average Interest Rate Calculator for web sites gives your visitors an easy-to-use financial calculator which calculates the average interest rate they pay on their debts. Easily installed on websites.MoneyToys(tm) financial calculators for websites give webmasters a simple way to add value to a web site by providing their visitors with financial calculators which are easy to install and configure.Installation is easy! Simply copy the online calculator to the appropriate directory on your web server and add the included HTML code to your web page. That's all it takes! Then, you can set your own initial values for the calculators and you can make the colors match YOUR site! Configure the font, font size and calculator size to match your site's design. All MoneyToys calculators include step-by-step installation instructions and three sample web pages with cut-and-paste code for your web pages.