The loss incurred by selling an article at Rs. 2114 is 65% of the gain attained by selling the same article at Rs. 2675. Find the cost price of the article (in Rs.).

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?