I don't know. The real interest rate of Huabai installment is so high

I believe many of us will use flowers when shopping , Sometimes money is tight , I don't want to return all the money immediately on the repayment date , Look at the rate of only a few points in each period , Mistakenly thinking that the rate is the interest rate of borrowing money , It's natural to order installment repayment , But the real interest rate of Huabai installment is actually as high as a dozen points , Without a little financial knowledge, it may really be misled by the rate of several points per period .

One 、 The handling rate is not the real interest rate

Let's take a look at the algorithm of installment handling rate given by Hua Bai ：

Suppose we borrow 1200 Yuan ,3 Months later 1200×(1+2.5%)=1230 element , Now 3 The monthly interest rate is 2.5% That's all right. .

But in fact, you didn't put this 1200 Yuan is completely occupied 3 Months , According to the official Algorithm , If we borrow 1200 Yuan , branch 3 If you want to make a regular repayment , The handling charge for each period should be 1200×2.5%÷3=10 Yuan , So the truth is ：

1. The first repayment , You only occupy 1 Months 1200 Yuan , Return it. 400 You're left after 800

2. The second repayment , You only occupy 2 Months 800 Yuan , Return it. 400 You're left after 400

3. The third repayment , Only in the end 400 You've completely occupied the yuan 3 Months , Each repayment is paid 10 Yuan interest

Because the actual occupation time of money is short , So you 3 The monthly real interest rate is higher than 2.5% Of .

Two 、 Real interest rate algorithm

To calculate the real interest rate, we need to calculate the cash flow of Huabai Internal rate of return （Internal Rate of Return, abbreviation IRR）, Suppose we still borrow 1200 Yuan , Spend the first month 1200 element , The back is continuous 3 It was collected every month for months 410 element , Then this cash flow is **[-1200,+410,+410,+410]**,Excel It directly provides a function for calculating the internal rate of return of cash flow IRR, We can just call it directly , The method to invoke is as follows ：

An interest = 1.24%

Finally, we can calculate our cash flow ** The monthly interest rate is 1.24%, that 3 The monthly interest rate is 1.24%×3=3.72%, Than we can see 2.5% Much higher , Then it's easy to get flowers The annualized interest rate is 1.24%×12=14.94%**, near 15%.

In the same way , We can calculate the flower points separately 3 period 、6 Period and 12 The real annualized interest rate of the periodic repayment , Here's the picture ：

3 It's a way of repayment by installments ** The annualized interest rates are 14.94%、15.27%、15.86%**, Such interest rate is already a very high interest rate for most people , Because the annual yield of most people's investment is less than 15% Of .

So , If the return on investment of cash in your hand cannot reach the interest rate of Hua Bai , Can you do it by stages or by stages , Direct repayment hurts for a while , I'm used to using it by stages , Your wealth will be eroded little by little by this high interest rate , Do more harm than good .

Welfare at the end of article ： Focus on 【 Chris Handbook 】 The official account and reply “ Flower by stages ”, You can get the real interest rate of Huabai installment with formula Excel