The Weekly Totals are located on the right side of the sheet and are calculated using the power output data for each day of the week for a particular week (i.e the total along a row). The Cumulative Production is a running total of the weekly totals.
The Total, Average, Maximum, Minimum and Standard Deviation of the counts for a particular day of the week (e.g. Monday) and for the Weekly Totals are presented across the bottom of the sheet. Summary statistics are presented in a small table below the weekly data.
In programming your workheet remember to make use of built in functions a much as possible; in particular the sum( ), average( ), max( ), min( ) and stdev( ) functions should be used. The functions can be inserted into your spreadsheet using the INSERT/FUNCTION menu or the Function Button on the Toolbar