Take comparable observations: the same marked locations, similar times and the same measurement method. Record both normal areas and problem areas. When something changes, write what changed before adjusting equipment or adding water. Otherwise, several simultaneous interventions can make it impossible to learn which one helped.
At the end, total the material used, labour time, crop lost, kilograms harvested, kilograms sold and money collected. Keep rejected or unsold mushrooms visible in the calculation. The first crop should tell you whether your supplier, room, routine and buyer work together. Expand only after you can explain the results and repeat the useful parts of the process.