Mohit purchased a table for Rs. 3,500 and due to some scratches on its top, he sold it for Rs. 3,200. What is his loss percentage (rounded off to two decimal places)?

A company considers hiring an extra machine for $150 per day to produce additional units. If the additional throughput contribution generated from producing these units on the machine is $390, by how much will total profit increase?

If the cost price of an article is 85 times its selling price, what is the loss percentage?