At the moment everything is done on Google spreadsheets, but their capabilities are very limited.
Three tables are filled every month. And of them receives information by day in the overall table drawing General conclusions.
You must migrate those tables are almost similar in their base and add to them functionality.
Definitely on Yii
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7 freelancers are bidding on average $183 for this job
Hi I am really interested in your project. I have full experience of programming. I could satisfy you. Everything will be done well if you work with me. Thank you