13 On January 1, 2022, a bag was purchased for ISK 800,000 . The salvage value of the equipment is estimated at ISK 20,000 . on a 5 -year lifespan. The devices are depreciated linearly (Straight-Line Method). What is the book value of the equipment at the end of 2023 ? Select one alternative: 488,000 ISK 780,000 ISK 508,000 ISK 468,000 ISK