0.276 yuan. The change pass is a money fund. If 1 1,000 yuan, the daily income of the change pass is about 0.63 yuan. The calculation formula of the daily income of the change pass is = (the total amount of the change pass ÷ 1 000) × the extremely high rate of return announced by the fund company that bought the fund that day. If the 10,000-share income from buying the fund on the same day is 0.6273 and the total amount of exchange tickets is 4,400 yuan, the daily income = (4,400 ÷10000) × 0.6273 ≈ 0.276 yuan.