How to solve it

4. (20%) The production quantity data of Renshan Company in February X8 are as follows Work in progress at the beginning of the period (60% completed) 50,000 Put into damaged goods 10,000 production in this period 250,000 Completed and transferred 260,000 out of the unit Ending work in process (90% completed) 30,000 300,000 300,000 The normal damaged products of Renshan Company are 3% of the product units that have passed the inspection. Try to calculato the number of normal damaged products and very domaged products when the inspection is at 50% now and 100% of the completion stage of the processing cont