Bonita, Inc. is a distributor of prepaid telephone cards to customers in its convenience stores. When Bonita sells the cards, it then pays the telecommunications company, TeleExpress, less a commission of 20 per cent of the selling price to customers. Bonita receives $4,200 in cards in January 2020. Bonita sold 45% of the cards in February, 30% in March, and 25% in April. It costs TeleExpress $3,000 to provide the telephone service on the cards sold by Bonita. Indicate how much income Bonita should recognize in January, February, March, and April. (If the answer is 0, please enter 0. Do not leave any fields blank.)