A freight forwarding company buys a new box car for Rp 150,000,000,-. This box car is estimated to be able to be used for 5 years with Estimated net income in the first year is IDR 100,000,000 and every year decreased by Rp. 20,000,000,-. So that in the second year it becomes Rp 80,000,000,-, the third year 60,000,000,- and so on until the 5th year. Company plans to depreciate the value of this truck using the unit-of-production depreciation method until the book value reaches zero. Calculate the amount of depreciation and book value year of the truck