不会！银行应该每个月给你同样的数。计算公式很简单，A = P(1+r/n)(nt), 但是n要问银行.

Formula for Calculating CD Interest

A = P(1+r/n)(nt)

• A is the total that your CD will be worth at the end of the term, including the amount you put in.
• P is the principal, or the amount you deposited when you bought the CD.
• R is the rate, or annual interest rate, expressed as a decimal. If the interest rate is 1.25% APY, r is 0.0125.
• n is the number of times that interest in compounded every year. Most CDs pay interest that is compounded daily, so n = 365. Check with your bank to verify the interest is compounded daily.
• t is time, or the number of years until the maturity date.