One thing: It originally cost 10 yuan, but then it dropped by 30%. How much did it drop?

The issue of ? has received a lot of attention. Let me share my understanding.

It originally cost 10 yuan, but it fell by 30%. How much money is left?

The answer is that there are only 7 yuan left.

How much does it have to increase from 5 yuan to 10 yuan?

The answer is that it needs to increase by 100%.

From here we can see that there is a huge gap between a 10% decline and a 10% rise.

Let’s talk about the details below.

1. How much does it cost to fall by 30%? After falling by 30%, it will be 7 yuan. This calculation method is very simple. We just multiply 10 by 70%, which is 7 yuan.

This 70% is the remaining 70% after subtracting 30.

2. How much does 5 yuan need to rise to become 10 yuan? If 10 yuan falls to 5 yuan, the drop is 50%, but if 5 yuan rises to 10 yuan, it needs to double, which is an increase of 100%.

can be achieved.

From here we can see that it is more difficult to go up from the bottom, and it is easier to go down from the top.

3. Trading must prevent retracement. This will be a great inspiration for your trading of stocks, funds or futures. We must prevent our money from losing. If you invest 100,000 yuan, you will lose.

50%, and then if you want to earn back 100,000 yuan, you need to earn back 100% to earn back your principal. Losing money is twice as easy as making money.

Every master of trading is very good at controlling retracement. They attach great importance to risk and always put risk first to prevent their own retracement losses.

If we can continue to make stable profits, then your money will soon grow bigger, because the bigger our money is, the faster we will make money. There is also a problem of compound interest here.

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