A decent deal with convenience of home delivery. I believe (based on the answer to one of the questions on the product page) that each roll has 180 sheets. Please find below the exact pricing in OzB currency.
$16.88 for 8100 sheets i.e. $0.21/100 sheets
$15.19 for 8100 sheets i.e. $0.18/100 sheets [S&S]