Northern Pride Inc., a diversified company, operates four departments. The company has collected the following departmental information for 2020:

Department		Sales		Cost of Goods Sold		Operating Expenses		Current Investment
1		$ 160,000		$ 123,000		$ 10,400		$ 140,000
2		72,000		28,000		17,120		168,000
3		1,200,000		938,400		138,400		880,000
4		1,000,000		600,000		198,400		1,120,000

Calculate residual income and rank department performances. Assume that the company requires a minimum return on the current investment of 5%.