Process equipment was purchased in the chemical industry in 2018 for OMR 12928 for an expected service life of 7 years. At the end of service life, the salvage value was estimated to be OMR 4389. Prepare a table showing each year's depreciation cost and book value using the following depreciation methods. a) Straight-line method b) Declining balance method c) Double declining balance method d) Sum of the year's digit method e) MACRS method using half-year convection (Refer to the fixed percentage factor table for the applicable year from the relevant textbook/reference).