way i do in the notes and videos, your presentation should be very efficient. If you find yourself doing a lot of lengthy calculations, something is likely wrong with your setup or you are using formulas instead of the tables. There is nothing wrong with using formulas, but I am requesting that you use tables for this project, unless you use the formulas in Excel. What I don't want is a bunch of lengthy formula calculations shown by hand. Just to be completely clear, the tables are based on the formulas. The tables consist of various combinations of interest rates and time periods that have already been plugged into the formulas and pre$-$calculated for your convenience. Here is the proposed investment problem to teach in your video: Rosenberg, Inc. is considering an investment with the following characteristics: $\backslash$begin$\{$tabular$\}\{|$l$|$l$|\}\backslash$hline Length of the project $($years$)$ & $13\backslash \backslash \backslash$hline Required rate of return & $11\backslash \%\backslash \backslash \backslash$hline Initial cash investment & $\backslash$$ $2,500,000\backslash \backslash \backslash$hline Working capital requirement & $\backslash$$ $225,000*\backslash \backslash \backslash$hline Annual projected cash inflows & $\backslash$$ $650,000\backslash \backslash \backslash$hline One$-$time Refurbishment costs needed at the end of year $8$ & $\backslash$$ $750,000\backslash \backslash \backslash$hline Salvage Value & $\backslash$$ $50,000\backslash \backslash \backslash$hline $\backslash$end$\{$tabular$\}*$Working capital is discussed in the video Ch $12$ Extra Practice Problems. Assume the working capital is released at the end of the project. $**$Think logically: is this an inflow or outflow? Single sum or annuity?