We shall Ignore cost of sugar cane at $0.36 per pound, as its going to be incurred for both processes.
Lets find the cash flow from not processing further:
42500 pounds Sugar @ $1.43 per Pound $60,775
Lets find the cash flow from Processing Further:
If 42500 pounds of raw sugar are processed further, we get 34000 pounds of refined sugar(42500/1.25)
34000 pounds of refined sugar@ $2.23 per pound $75280
Additional Processing charges for 42500 pounds@$0.49 ($20825)
Total Cash Flow $54995
As can be observed, the organisation earns more when they sell raw sugar, Thus sugar should not be processed further.