हरि को एक वस्तु बेचने पर 8% की हानि हुई। यदि उसने इसे 300 रुपये अधिक में बेचा होता, तो उसे 4% का लाभ होता। उसका क्रय मूल्य (रुपये 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?