Product sales forecast

Product sales forecast

Good afternoon, I'm from Brazil and I did not find a help channel in Portuguese, someone could help me.
I need to create a forecast for the first quarter of 2017, for our products .: Ex. (Working with CCTV cameras and access control turnstiles) would like to stipulate values ​​or quantities for these products. R $ 50,000.00 in access control ratchet X, R $ 30,000.00 cameras and CCTV.
Is it possible to do that? Well, I only found it by Zoho CRM users.