एक व्यक्ति ने दो वस्तुएं प्रत्येक 4800 रुपये में बेचीं, जिससे पूरे लेन-देन में न तो कोई लाभ हुआ और न ही कोई हानि हुई। यदि एक वस्तु को 20% के लाभ पर बेचा गया, तो दूसरी वस्तु पर हानि प्रतिशत क्या था?

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?