(a) Kemikali ltd. manufactures varieties of chemicals. one of the chemicals is branded" Maliza" and is manufactures using three types of ingredients; PP, KK and MM. The standard ingredients usage and cost for one unit of "maliza" is as follows: Sh Ingredient PP 30 grammes at Sh.0.8 per gram KK 25 grammes at Sh.0.12 per gram MM 15 grammes at Sh.0.10 per gram 69 24 30 15 Additional information 1. During the month of march 2012, Kemikali Ltd manufactured 115,000 units of "maliza" using: 3,500 kilogrammes of PP 2,000 kilogrammes of KK 1,900 Kilogrammes of MM 2. Kemikali ltd has used activity based costing to allocate its overheads for a number of years. One of its main overherads is machine set-up costs. During the month of march 2012, the following information was available in relation to set set- up costs Budgeted Actual Total number of units produced Total number of set-ups 370,000 72,000 Total set-up costs(sh) Required: Calculate the following variances for the maliza i. Materials usage variance (4marks) ii. Materials mix variance (3marks) iii. Materials yield variance (3marks) iv. Expenditure variance (2marks) v. Efficiency variance (2marks) 450,000 85,000 21,200,000 24,500,000 L