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发帖数: 1501 | 1 credit limit 5000
account balance 2000
Interest rate(customer) 16%
cost per card 40
annual fee 20
interest rate(C1) 6%
defalult rate 2%
[20-40+2000*(16%-6%)]-5000*2%
=180-100
=80
if credit limit drop from 5000 to 3000
1>other things been equal, what will the profit change
80＋(5000-3000)*2%=80+40=120
2>if profitable stay the same,
1. how much can account balance change
120-80=(A/B-A'/B'-(16%-6%)
A/B CHANGE=400
2. how many customer may leav |
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