The table shows the cost of sunscreen of two brands with and without sales tax. Which brand has a greater sales tax rate? Give the sales tax rate of each brand.

	Cost (in Rs)	Cost+Tax (in Rs)
1. $\mathrm{X} (100 \mathrm{gm})$	$70$	$75$
2. $\mathrm{Y} (100 \mathrm{gm})$	$62$	$65$