@Nickela I sincerely like your Google spreadsheet, however, I couldn't help but notice that there is an numerical error in the thrusters section. More specifically, S6, S8, S10, and S12 thrusters reflect PCU cost as if it was T6, T8, T10, and T12.
The actual PCU as it should be:
S6 thrusters consume 30 (PCU);
S8 thrusters consume 40 (PCU);
S10 thrusters consume 50 (PCU); and
S12 thrusters consume 60 (PCU).
I did not thoroughly check to see if it was a problem across the board with all thruster sizes. You might want to double check the data to see if the numerical values are indeed correct.
Source: Starfinder Core Rulebook Pg.296 under Thrusters table.