Multiply the sum of a column

Hello


Working on a simple timesheet, although it has taken me a few hours so far. Please see attached

I am struggling to get the right formula to multiply the contents of cell T9 by the number that I input into cell H12.

H12 is the hourly rate and T9 is the total sum of column T, the hours worked.

I just can't figure it out and have trawled the forum and the internet but can't find this particular solution.

Many thanks in anticipation for any assistance.

Rob