Help with creating a quote form...(new user)

Help with creating a quote form...(new user)

3/27/17 - Been using Zoho for just over a month and need help with creating a Quote Form:

On the Quote form I have 2 lookup fields that both are radio buttons :

Field 1: Field 2:


When any of the first 3 options in Field 1 are selected and any of the 4 options in Field 2 are selected, I need it to update the Monthly Rate Field on the Quote Form from information on the Storage Rates Form below.