Stock Sale Values - Stock Control

VALUE FOR YEAR K, L Holds the value of year-to-date sales

VALUE FOR PERIOD K, L Holds the value of period-to-date sales

VALUE PERIOD 1-13 K, L Holds the sales value for stock periods 1-13. Updated as part of the period end routine, for example as you run the period end for period 4 the value from PERIOD-SALES is moved into PERIOD-4-SALES overwriting the value from period 4 last year.