Haitek Bhd manufactures and sells a home-freezer and uses standard costing. Actual data relating to March, April, and May 2021 are as follows:

Month	Beginning Inventory	Production	Sales
March	0	3,000	2,400
April	600	2,600	2,600
May	600	3,300	3,450

Other related actual data :

Manufacturing cost per unit produced ……...…...	RM550
Marketing cost per unit sold …………….......…...	RM200
Fixed Manufacturing costs per month ………...…	RM320,000
Fixed Operating & marketing costs per month ….	RM95,000
Selling price per unit…………………………......	RM1,700

The budgeted level of production used to calculate the predetermined fixed manufacturing cost per unit is 3,000 units. Any under/over applied fixed manufacturing cost due to change in production volume is charged to the cost of goods sold of the month it occurs. Assume there is no other variances related to fixed manufacturing.

REQUIRED:

Prepare income statements for Haitek in March, April, and May 2021 under

1. variable costing
2. absorption costing

2. Explain the difference in operating income for March, April, and May under variable costing and absorption costing.