Reset To-Date X & Z Report Sales Figures
The To-Date Sales value on the X and Z Report normally resets to zero when you do the month-end for period 12, i.e. December in most cases.
If not (or perhaps December was not your period 12, or perhaps there are other reasons that it does not match your actual to-date sales), it's easy to change via the X & Z Report Screen.
It's also possible to reset that To-Date figure any time you like, e.g. you could even reset it to zero monthly or weekly if you like the figure to be a Month-to-Date or Week-to-Date value.
Open the Cash Register X & Z Report screen and choose To-Date Figures then manually change the value of Previous Sales To-Date.
Note that if you are setting/correcting this on a day other than the first day of the year, you want to set the value to the year-to-date sales figures including tax up to and including the last day that has been Z-d out - i.e. probably not including today.
Note that you generally do not want to adjust the Previous Outstanding Layaway / Special-Order Liability figure because that is recalculated by Shopkeeper every time you run the Z-Report based on the actual amount of payments on all outstanding / unfinalized sales.
E.g. if the figure shows at $5,000 and you change it to $10,000, the next Z report will show Previous Liability as $5,000, then it will recalculate the new Liability figure as $5,000 from the real list of sales and that will then cause unexpected adjustments to the Finalized Layaway sales figures on the X and Z report.
There may be valid times to change this figure manually, but at the same time you zero the To-Date sales isn't normally one of those times.