12,500 रुपये के अंकित मूल्य वाली एक वस्तु पर दो क्रमिक छूट दी गईं, जिनमें से पहली छूट 14 1/2% थी। अंततः इसे 9,405 रुपये में बेचा गया। दूसरी छूट कितनी थी?

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?