On an item, there is an initial 18% discount on the marked price of ₹26,000. After giving an additional season's discount on the reduced price, the item is sold for ₹16,000. How much was the season's discount percentage (correct up 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?