The current price of the fund refers to the current price of the fund, that is, the price that investors need to pay when purchasing the fund. The historical highest price refers to the highest price of the fund in a certain period of time in the past.

For this problem, if the current price of a fund is 10 yuan, which is lower than the historical 70%, we can calculate it as follows:

1. First, we need to know the historical highest price of the fund in the past.

Then, we multiply the highest price in history by 70% to get a number.

Finally, we compare the above figures with the current fund price. If the current price of the fund is lower than the above figures, it can be said that the current price of the fund is lower than the historical 70%.

It should be noted that this calculation method is only a simple estimation method and may not be accurate. Because the fund price is affected by many factors, including market supply and demand, macroeconomic environment, policy changes and so on. Therefore, investors need to consider a variety of factors when buying funds, rather than relying solely on historical prices to make decisions.

If investors want to buy low-priced funds, they can consider the following aspects:

1. Choose high-quality fund companies and fund managers, who can usually rely on their professional experience and skills to explore low-cost investment opportunities when the market is in a downturn.

2. Choose industry funds with good industry prospects and sound fundamentals in order to get better returns when the market picks up.

3. diversify your investment, don't put all your funds in the same fund, which can reduce risks and improve returns.

In short, investors should make full research and analysis, combine their own risk tolerance and investment objectives, and carefully choose the fund products that suit them.