A freight forwarding company buys a new box car for IDR 150,000,000. It is estimated that this car box can be used for 5 years with an estimated net income in the first year of IDR 100,000,000 and every year it decreases by IDR 20,000,000. So that in the second year it becomes Rp. 80,000,000, -, the third year is 60,000,000, - and so on until the fifth year. The company plans to reduce the value of this truck by using the production unit depreciation method until its book value reaches zero. Calculate the amount of depreciation and annual book value of the truck!