Let the selling price of goods by shyam be = ₹ 100
∴ Selling price of goods by Ram = ₹ 75
Now, according to the question.
125% of selling price of goods by Hari = 75
⇒ Selling price of goods by Hari = (100/125) x 75 = ₹ 60
So, Hari's goods are cheaper than shyam's good by
(40/100) x 100% = 40%