The impact of the depreciation of the RMB on the economy is obvious. It will have a negative impact on export companies because the prices of their products in foreign markets will be affected, thus affecting their export volumes.

In addition, the depreciation of the RMB will also have a negative impact on importing companies because they need to purchase foreign products at higher prices, thus affecting their import volumes.

In addition, the depreciation of the RMB will also have a negative impact on investors because their investment returns will be affected, thereby affecting their investment behavior.

Protective investment is a method to deal with devaluation. Its basic idea is that when a currency depreciates, investors can offset the depreciation of the domestic currency by investing in foreign currencies, thereby obtaining investment income.

The specific method of investment protection is that investors can purchase foreign exchange futures contracts, foreign exchange investment funds, or foreign exchange investment products to offset the depreciation of the domestic currency and obtain investment income.

In addition, investors can also purchase foreign stocks, bonds and other financial products to offset the depreciation of the domestic currency and obtain investment income.

In addition, investors can also obtain investment income by buying foreign currencies to offset the depreciation of the domestic currency.

Finally, investors can also purchase foreign currency futures contracts to offset the depreciation of the domestic currency and thereby obtain investment income.

In short, protective investment is an effective method to deal with devaluation. It can help investors offset the depreciation of the domestic currency and thereby obtain investment income.

However, investment in market protection also has certain risks. Investors should choose appropriate investment strategies in market protection based on their own risk tolerance and investment goals to obtain maximum investment returns.