How to say “I'll show you the shelf labels so you can compare prices across the different bottle sizes.” in Japanese
In Japanese
ボトルの大きさが違っても値段を比べられるように、棚の値札を一緒に見てみましょう。
Botoru no ōkisa ga chigatte mo nedan o kuraberareru yō ni, tana no nefuda o issho ni mite mimashō.