जब किसी वस्तु को Rs. 21,056 में बेचा जाता है, तो अर्जित लाभ, उसी वस्तु को Rs. 10,528 में बेचने पर हुई हानि से 24% अधिक होता है। वस्तु का क्रय मूल्य (Rs. में) ज्ञात कीजिए।

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?