Kiw teo Sheep (KES) Co operntos several businesses based around sheep Jarmeing kT S Co has a berd of around 6,000 sheep at any one time. in addition to seting lambs and adud sheep at market, KES Co uses the wool removed from lambs and sheep at shearng time to prodice a varlaty of woollen products which are sold ats wester in Decenber 20X5. KES Cos flock of sheep is sheared to produce an inventory of Heece. The cast of shearing is $4 per sheep which generates one fleece. Had the twoce been sold on the open market at this date, the sales price would be $9 per heece and seting costs of $1 per fleece would be payable. Co has decided to change its inventory valuation method from cost formula (a) to cost formula (b). The accountant has prepared a schedule showing inventory values using these mathods at various dates What is the impact on cost of sales for the year ended 31 December 205 due to the change in inventory valuation method? $770 increase $1,630 increase $770 decrease $1,630 decrease