You can make your own: To make buttermilk, use 1 cup milk and 1 tablespoon lemon juice or white vinegar. Allow it to sit for a few minutes. If you do purchase buttermilk and have extra, freeze it in 1 cup containers or in Ziplock bags. You can also purchase powdered buttermilk in grocery stores.
Straight-line depreciation allows an equal portion of the laptop's cost to be claimed in each year over the total depreciation period. If the cost of the computer was $1,000, for example, then $200 a year can be included in the company's total depreciation amount each year for five years.
One way to do it is to depreciate / deduct / write of 30 % of the value every year. An example: 1  A machine cost 10.000 2  $. Year 1 you can deduct 3.000 $ in the profit and loss statement.( 3 30 % of 10.000).4  Year 2 you can deduct 2.100 $.ne way to do it is to depreciate / deduct / write of 30 % of the value every year. An example: 1  A machine cost 10.000 2  $. Year 1 you can deduct 3.000 $ in the profit and loss statement.