If there is the factory and there is the fire in that factory and the machine was rendered un-useable and then we sold the machine for scrap, 100,000 was the original value and 50,000 was the written down value showing on the books and the scrap value is 10,000 and from insurance company we were able to recover 30,000, and we purchase another machine to replace the machine for 100,000. How to record the transaction?