please show all workings and calculations

gash ("ecast Moy fruchases material A (E) General admonistratvon costs we E20.OOO a rnonth 700000 200.000 "Oduction costs 30.000 ncludng depteciation of month ,tixeg o' the sales department ate f.28.OOO rnonth. including depec.aton ot Vanable costs ot the sales department amount to of tummer Now costing E200,OOO be mrchased in Ave, Some exp'ing omnpmnt be scud in May E 10,000 customers pay in cash Of customers pay month the date Of sale at 28th Feb-ury amount to 30,000 Thpsupp'ier of material 's paid 30 days ater purchase AJI Othel costs are paid in the rnmth they are incued 'The bank balance t 1st Malch is ESO.OOO