मधुर ने दो वस्तुएं क्रमशः ₹ 450 और ₹ 1,050 में खरीदीं। उसने पहली वस्तु को 16% लाभ पर तथा दूसरी वस्तु को 10% हानि पर बेचा। संपूर्ण सौदे में उसका लाभ या हानि प्रतिशत 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?