Formula Help

[Tiffanik]

I need help writing a formula, please.

I have my cell "=" referenced to a cell on another sheet. I need the total of that number to be multiplied by .3005. How do I write this formula? I keep getting an error, sigh.

This is my current formula. I need the cell to total this below *.3005.

='[Copy of Dec 18 Payroll Cost Summary 2018.xlsx]December'!$I$11

[#2]

Hi

='[Copy of Dec 18 Payroll Cost Summary 2018.xlsx]December'!$I$11*0.3005

[#3]

Thank you for the response....I need my cell to be the sum of the original number *.3005.

When I use ='[Copy of Dec 18 Payroll Cost Summary 2018.xlsx]December'!$I$11*0.3005 - it gives me the sum of the original # multiplied by .3005.

Sorry if I am asking this in a confusing way....I'm brain fried today.  : )

[#4]

Second guess.

='[Copy of Dec 18 Payroll Cost Summary 2018.xlsx]December'!$I$11*(1+0.3005)