How is gross to net formula calculated under expenses?

The "gross to net" formula instructs Web TimeSheet how to calculate backwards from the gross (total expense amount) to the net (pre-tax amount) for an individual expense. Providing this formula will ensure expense amounts are correct, whether the user enters the net or the gross amount for a specific expense.

Below is the expansion of the formula on how gross to net is calculated in the help section.

Considering that tax is 7% of Net

Gross = Tax + Net

Tax = 0.07*Net

Substituting Tax with the formula mentioned above,

Gross = 0.07*net+Net

Gross = Net(0.07+1)

Therefore,

Gross = Net * 1.07

Net = Gross/1.07

Note:
More information about gross to net formula is available in the below given KB article.
https://www.replicon.com/customer-zone2/kb-1000426/