Cost of glove = $34
Number of socks bought = 2
Normal cost of socks = $6
Normal cost of two socks = 6×2 = $12
Discounted cost of socks = $4
Discounted cost of 2 socks = 2× = $8
Normal price to total item he bought = 34+12 = $46
Discounted price of socks he bought = 34+8 = $42
Saving percentage before tax = 100× (Normal price - discounted price)/normal price
= 100(46-42)/46
= 4×100/46
= 8.695%