[The following information applies to the questions displayed below.] Biondi Industries is a manufacturer of chemicals for various purposes. One of the processes used by Biondi produces HTP-3, a chemical used in hot tubs and swimming pools; PST-4, a chemical used in pesticides; and RJ_5, a product that is sold to fertilizer manufacturers. Biondi uses the net-realizable-value method to allocate joint production costs. The ratio of output quantities to input quantities of direct material used in the joint process remains consistent from month to month. Biondi Industries uses FIFO (first-in, first-out) in valuing its finished-goods inventories. Data regarding Biondi's operations for the month of October are as follows. During this month, Biondi incurred joint production costs of $2,250,000 in the manufacture of HTP-3, PST-4, and RJ-5. Problem 17-29 Part 3 3-a. Suppose Biondi Industries has a new opportunity to sell PST-4 at the split-off point for $4.90 per gallon. Calculate the per gallor rofit (loss) of processing further PST-4. 3-b. Should the company sell PST-4 at the split-off point or continue to process this product further? Complete this question by entering your answers in the tabs below. Suppose Biondi Industries has a new opportunity to sell PST -4 at the split-off point for $4.90 per gallon. Calculate the per gallon profit (loss) of processing further PST-4. (Round your answer to 2 decimal places.)