Answer:
Incomplete question because the cost value of the asset in question is unknown
Step-by-step explanation:
This question is incomplete.
However to calculate depreciation rate using the straight line basis, the formula below can be applied.
Depreciation rate = Cost - scrap value / estimated useful life.
Lets take this as an example:
Assuming the cost of the building is $3,000,000 and the salvage value is $750,000 with an estimated useful life of 30 years.
The depreciation rate will be calculated as
$3,000,000 - $750,000 / 30
$2,250, 000/ 30 = $75,000
Depreciation rate = $75,000