gst on clothes

hello sir

Dear sir I purchased 1 jeans from central which have tag of 3695.
On tag it is mention that above amount is inclusive of all taxes.

But at the time of payment they collect RS 2715.82. After 30% Discount.
Tag amount : 3695 RS
Discount. : 1108.5 RS
taxable Amt : 2586.5 RS
GST @ 5%. : 129.32 RS
total amt. : 2715.82 RS


sir please tell is this right calculation??