Tina gets a discount of 15% on a grinder whose marked price is Rs. 8200. Since she pays in cash, she receives an additional 3% discount on the discounted price. How much does she pay in total?

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?