Solo Limited makes and sells a single product. The following data relate to periods 1 to 4

Normal activity is 500 units and production and sales for the four periods are as follows:

There were no opening stocks at the start of period 1.
Required:
(a) Prepare operating statements for EACH of the periods 1 to 4, based on marginal costing principles.
(b) Prepare operating statements for EACH of the periods 1 to 4, based on absorption costing
principles.
(c) Comment briefly on the results obtained in each period AND in total by the two systems.