find the rate of discount being given on a shirt whose selling price is rs 546 deducting a discount of rs 104 on its marked price

Selling price of the shirt = Rs.546
Discount = Rs.104
Then, marked price = Rs.546 + Rs.104 = Rs.650
So, discount percentage = $\frac{104\times 100}{650}$= 16%
Therefore rate of discount is 16%.