Need to fill a cell using SUMIF but searching a cell using VLOOKUP

I am building a spreadsheet that uses a vlookup in the Master sheet. I have a dropdown to select a department. The department number is then filled in via a vlookup into an adjacent cell. On another sheet, I need that vlookup number to be used as a search for a dollar total.

I have attached the sheet. The PRINT SHEET is where my difficulty comes in. I want column C to auto-sum all matches to column B. Column B numbers are being drawn from MASTER where column C is populated by a VLOOKUP.

Sorry for any confusion in my writing this. Hopefully the sheet will help make sense.

Thanks for any and all assistance!!

Hey Sambo kid, this seems to resolve my problem!

Thanks so much for the quick and amazing response!