Excel: CDR calculation

Hello, Need help in calculating Call Detail Record of few mobile numbers. Have already calculated all new rates as per new tariff, but am not able to deduct free minutes from the local charges. basically in the raw cdr, with values, i want to make $0 to the top 500 minutes of local calls. Can someone help me with this...

This question generated 9 answers. To proceed to the answers, click here.

This thread is current as of October 14, 2014.

For more resources for Microsoft Excel