Larkspur Inc. sells prepaid telephone cards to customers in its convenience stores. When Larkspur sells cards, it then pays the telecommunications company, TeleExpress, for the value of the cards less a 20% commission. Assume that Larkspur receives $4,000 of prepaid cards in January 2025. Larkspur sold 50% of the cards in February, 30% in March, and 20% in April. The total payment by Larkspur to TeleExpress over the 3 months is $3,200. Indicate how much income Larkspur should recognize in January, February, March, and April.