You can use ATS for testing your data within your application. You can use a datasheet (Excel) with you different data records within one test scripts. The test script will test every single record. For example:
Amount Price Outcome
10 2.50 25
5 1 5
etc
The Excel sheet has in this case two records. The same test script will automatically run two times using the records data. If you have 100 records it will run a hundred times. You can even use the column ‘Outcome’ to check if the calculation between the column ‘Amount’ and ‘Price’ is ok.