In the above formula, each parameter has a unit problem. Among them, there is no problem that the units of subscription amount, net subscription amount and subscription fee are all "yuan"; There is no problem that the subscription share unit is "one share"; There is no unit in the subscription rate, which is the amount of infinite steel; However, what is the par value unit of the fund share? Must discuss!

Usually people (including fund companies) write the unit of "face value of fund shares" as "yuan". However, people often ignore the problem of measuring steel parameters. If the measurement of steel is incorrect, it will lead to unreasonable measurement of steel or units. Please see: If "face value of fund share" is substituted into formula (5) in yuan, what will be the result?

Subscription share (copies) = subscription amount (yuan)/net value of fund share (yuan)

When the numerator on the right side of the formula is divided by the unit "yuan" of the denominator, it becomes unitless; But the unit on the left side of the formula is "share", which is obviously wrong. Why is there such a result? The reason is mainly due to the measurement of steel in the face value of fund shares. The steel measurement or unit of this parameter should be "yuan/copy" correct! If the unit of "face value of fund shares" is substituted into Formula (5) with "yuan/share", then:

Subscription share (share) = net subscription amount (yuan)/face value of fund share (yuan/share)

When the unit of numerator denominator on the right side of the formula is divided, the unit is "copied", which is consistent with the unit on the left side of the formula. Therefore, the correct unit of "face value of fund shares" should be "yuan/share".