How much is the handling fee for the credit card salesman of Shenzhen Ping An Bank to successfully handle a credit card?
30 yuan a month is 4 yuan each.
50 is one in 6 yuan.
70 is one in 8 yuan.
90 pieces each 10 yuan.
100 each 15 yuan.
150 is one in 25 yuan.
200 is one in 35 yuan.
300 a 45 yuan.