$32.50: 4 students - $40 missed lesson credit 
$37.50: 4 students - $20 missed lesson credit
$42.50 4 students
$36.60: 3 students  - $40 missed lesson credit 
$43.30 3 students - $20 missed lesson credit
$50.00 3  students
$45.00: 2 students - $40 missed lesson credit
$55.00 2 students - $20 missed lesson credit$65:00:  2 students 

More details:  Missed lesson credits