Consistence of data in report

I have created a projet with only one resource on one year. The planned days = assigned days = reassessed days = 212. The resource a real work allocation of 25 days and no shift is identified on the planning. However in report “planning work plan by month” the sum of days is 215 instead of 212 (see attached copy display, surrounded in red) ?
Thank by advance for any explanation
Eric

Thank you I understand the calculation. In fact you have to recalculate the activities planning in the planning menu to have the right figure.
But I have a comment regarding to the “work plan per month” menu, the data underlined in yellow should not be identified as “planned” data but rather as “reassessed” data as they are in conformance with reassessed data and not planned data once you recalculate the activities planning.
Eric

I have underline in same color (see display copy attached) the data that are consistent between project and planning. What is called “planned” in planning is in fact left days regard to the project data. That may be a little confusing as planned may be understood as initial charge in days.