15 paid office hours/semester
At the lowest adjunct lecturer step from 2017, hourly rate is $71.59. So there would be the compounded 2% for 2018 and 2019 to increase the hourly rate for teaching the class (45 hours of pay for a 3-contact hour class? not sure) + the 15 paid office hours at that new hourly rate...
So for Spring 2020 that would be $3351 + $1117 paid office hours = $4,468 total pay for a 3-credit course.