Hello i'm a php developer for more than 15 years
Work with jaascript, mysql, css, etc.
You must have a logi page
A page where you can find old inserted data and the detail page.
The detail page can have both spredsheets separated by tabs, 1 where you put the values, the other where you get the data analised.
I can do this in bootstrap and you can use it in conputers, tablets and phones
Thanks for the oportunity
Tiago Barrosa