please assist me

uursrekeningkunde (mil) - Management accounting (mil) - 344 / My courses / Bestuursrekeningkunde min Management accounting (mi) - 344 / Week 4: Standard Costing 21:13 -9 August 202017 Standard Casting 2 In December 2019. Crodys costs and quantities of paper consumed in manufacturing its 2020 Yearly Planner and Calendar were as follows Actual purchase price per unit - 13 cents per page Standard unit price - 14 cents per page Standard quantity for good production - 97 900 pages Actual quantity purchased in December - 115 000 pages Actual quantity used in December - 100 000 pages Required: a. Calculate the total purchase cost for December b. Calculate the materials are variance c. Ciculate the materials usage variante