How to calculate participant*hours I'm trying to calculate the number of "participant*hours" for participation in a program. I have the following variables/data: 1) Total # of sessions given throughout the program. 2) Average duration (in hours) of each session. 3) Average # of participants in each session. So, for example, if 84 sessions were given with a duration of 0.75 hours per session, and about 25 participants per session, what would be the proper way of calculating a figure with the units "participant*hours"? By simple multiplication and unit cancelation, it seems the calculation should be: Total hours = (84 sessions)*(0.75 hours / session) = 63 hours Total # of participants = (84 sessions)*(25 participants / session) = 2,100 participants (2,100 participants) _(63 hours) = 132,300 participant_ hours Is this the proper way of obtaining "participant*hours"? I ask because the figure seems very high. Thank you in advance.

After digesting the feedback received and other resources, I believe the calculation that yields the correct units (i.e., "participation*hours") and makes conceptual sense is:

$$[(# participants × # hours) ∕ session]×(total # of sessions)$$