(4) 60 minute sessions to be used in 2 months
$240 less 10% = $216 + tax

(4) 90 minute sessions to be used in 2 months
$320 less 10% = $288 + tax

(6) 60 minute sessions to be used in 6 months
$360 less 10% = $324 + tax

(6) 90 minute sessions to be used in 6 months
$480 less 10% = $432 + tax