Total: 386.4 kwh
Best day: 22.1 kwh 23/03/2020
Worst day: 1.8 kwh 05/03/2020
Generation per kwp: 105 kwh
Daily average per kwp: 3.4 kwh
Daily average: 12.5 kwh
105kWh/kWp?
Looked again and it should be 94.7kWh/kWp (386.4/4.08).

Unless you are dividing the total by the export limit of 3.68kW.
Its a monthly reading 386.4 / 3.68 (16 x 230w panels) = 105
The same way that you have worked yours out 342.8 / 3.87 = 88.6