MPPT 100/20 Displayed consumption is different, but it is always the same Load by 24W/24V 24h connectet. can anyone tell me the reason? Thank you!

Date	Yield(Wh)	Consumption(Wh)	Max. PV power(W)	Max. PV voltage(V)	Min. battery voltage(V)	Max. battery voltage(V)
11/24/20	10	260	42.00	75.14	24.23	24.67
11/23/20	770	330	357.00	90.01	24.30	28.30
11/22/20	370	160	202.00	86.68	24.25	26.81
11/21/20	40	140	29.00	74.73	24.40	24.72
11/20/20	1110	190	359.00	89.48	23.73	27.13
11/19/20	200	160	248.00	85.72	23.81	26.22
11/18/20	130	80	122.00	81.81	23.92	25.17
11/17/20	30	50	19.00	71.54	24.61	24.30
11/16/20	120	70	128.00	87.48	24.27	25.45
11/15/20	890	100	332.00	86.05	23.76	26.38
11/14/20	260	380	104.00	82.73	23.85	24.85
11/13/20	880	250	280.00	85.73	23.60	25.94
11.12.2020	110	180	70.00	76.97	23.65	24.15
11.11.2020	60	330	18.00	73.11	23.81	24.15
11.10.2020	50	400	13.00	70.72	24.15	24.61