I think the answer is a. I'm not 100 sure though.
Ending capital for the month = The month's beginning capital + Additional capital inflow for the month - additional capital outflow for the month
For example: if had $500 at the beginning of a month, you got a dividend of $100 during the month and also spend $50 on entertainment during the month, the ending capital would be 500 + 100 -50 = $550
Answer: The higher the principal, the higher the total cost of the loan
Explanation:
From the chart shown we can see that the loan with a higher principal has a higher total cost than the loan with the smaller principal.
This happens because the interest rate attached affects larger figures more than smaller ones. 6.47% of $6,000 is $389 which is larger than 6.47% of $5,000 which is $324 (calculating the cost of a loan is more cumbersome than this but this shows the effect as well).
When compounded overtime, this difference will be even more and thus shows that larger principals cause larger total costs.
