A basic sum function does not work. The zero number reported below is the result of the SUM function SUM -(C2:C40)

If I run this spreadsheet on Google Sheets, the formula correctly reports $1716.10

Please address this basic issue.  I have lost faith in the accuracy of LibreOffice tools.

Date	Description	Amount	AccountType
2021-03-11	796229 POS CHCKING SIG 03/10 09:43 WALGREENS #6111 LAFAYETTE CO 06284676 796229	$-339.99	HSA
2021-03-03	225730 POS CHCKING PIN 03/03 15:31 WALGREENS 1830 30TH BOULDER CO 02482T32 22573	$-15.23	HSA
2021-03-03	202207 POS CHCKING PIN 03/03 15:18 KING SOOP 1650 30TH BOULDER CO 11006165 20220	$-21.22	HSA
2021-03-03	703007 POS CHCKING PIN 03/03 10:20 WALGREENS 1600 COAL SUPERIOR CO 06467T41 7030	$-4.39	HSA
2021-02-16	443543 POS CHCKING SIG 02/13 05:11 BRIOVARX 800-562-6223 IL 20040269 443543	$-5.00	HSA
2021-02-11	45227 POS CHCKING SIG 02/11 05:19 OPTUMRX 800-562-6223 CA 84821867 045227	$-136.51	HSA
2021-01-27	314425 POS CHCKING SIG 01/26 04:55 COLO MEDICAL PSYCHI BOULDER CO 10100130 31442	$-299.85	HSA
2021-01-26	127354 POS CHCKING PIN 01/26 14:42 KING SOOP 1650 30TH BOULDER CO 11006167 12735	$-11.16	HSA
2020-12-22	845846 POS CHCKING SIG 12/22 04:53 BRIOVARX 800-562-6223 IL 94833831 845846	$-5.00	HSA
2020-12-22	139291 POS CHCKING PIN 12/21 18:02 WALGREENS 1600 COAL SUPERIOR CO 06467T41 1392	$-11.32	HSA
2020-11-20	396753 POS CHCKING SIG 11/20 04:39 BRIOVARX 800-562-6223 IL 18416229 396753	$-5.00	HSA
2020-11-18	44971 POS CHCKING PIN 11/17 17:01 WALGREENS 1600 COAL SUPERIOR CO 06467T41 04497	$-11.32	HSA
2020-11-05	677055 POS CHCKING SIG 11/04 04:46 BOULDER EYE SURGEON 303-4443000 CO 06849800 6	$-23.04	HSA
2020-10-29	942276 POS CHCKING SIG 10/29 04:48 BRIOVARX 800-562-6223 IL 78966422 942276	$-5.00	HSA
2020-10-15	881186 POS CHCKING SIG 10/14 05:12 COLO MEDICAL PSYCHI BOULDER CO 13400052 88118	$-17.18	HSA
2020-10-01	135482 POS CHCKING PIN 10/01 15:24 KING SOOP 1650 30TH BOULDER CO 11006167 13548	$-13.75	HSA
2020-09-29	696255 POS CHCKING SIG 09/28 01:54 PHR*COLORADORETINA 303-2611600 CO 67382042 69	$-23.25	HSA
2020-09-23	760696 POS CHCKING SIG 09/23 05:25 OPTUMRX 800-562-6223 CA 80365775 760696	$-87.66	HSA
2020-09-23	683284 POS CHCKING SIG 09/23 05:37 OPTUMRX 800-562-6223 CA 80347492 683284	$-28.78	HSA
2020-09-15	74752 POS CHCKING SIG 09/14 01:30 PHR*COLORADORETINA 303-2611600 CO 19295201 074	$-23.25	HSA
2020-09-15	588986 POS CHCKING SIG 09/14 05:07 COLO MEDICAL PSYCHI BOULDER CO 11200070 58898	$-34.37	HSA
2020-09-14	146706 POS CHCKING SIG 09/12 04:59 BRIOVARX 800-562-6223 IL 95931843 146706	$-5.00	HSA
2020-08-20	787932 POS CHCKING SIG 08/19 04:55 COLO MEDICAL PSYCHI BOULDER CO 19600058 78793	$-17.19	HSA
2020-08-20	259651 POS CHCKING PIN 08/19 16:36 KING SOOP 1650 30TH BOULDER CO 11006167 25965	$-11.58	HSA
2020-08-05	117176 POS CHCKING PIN 08/05 15:47 KING SOOP 1650 30TH BOULDER CO 11006166 11717	$-1.30	HSA
2020-07-23	10539 POS CHCKING PIN 07/22 18:11 KING SOOP 1650 30TH BOULDER CO 11006166 010539	$-11.56	HSA
2020-07-23	648252 POS CHCKING SIG 07/22 05:04 COLO MEDICAL PSYCHI BOULDER CO 17800050 64825	$-34.36	HSA
2020-07-15	896136 POS CHCKING SIG 07/14 09:56 ASSOCIATES IN FAMIL FORT COLLINS CO 98696979	$-162.54	HSA
2020-07-06	89576 POS CHCKING SIG 07/05 04:03 PHR*COLORADORETINA 303-2611600 CO 73878933 089	$-23.25	HSA
2020-06-23	656255 POS CHCKING SIG 06/23 04:55 OPTUMRX 800-562-6223 CA 99640363 656255	$-87.55	HSA
2020-06-22	375126 POS CHCKING SIG 06/20 04:42 OPTUMRX 800-562-6223 CA 12670827 375126	$-11.44	HSA
2020-06-17	41341 POS CHCKING PIN 06/16 18:13 WALGREENS 1600 COAL SUPERIOR CO 06467T41 04134	$-12.29	HSA
2020-05-07	59695 POS CHCKING PIN 05/06 18:03 WALGREENS 1600 COAL SUPERIOR CO 06467T42 05969	$-5.54	HSA
2020-05-04	256624 POS CHCKING SIG 05/02 01:51 PHR*COLORADORETINA 303-2611600 CO 91499877 25	$-23.25	HSA
2020-04-09	EARNINGS ON EXCESS CONTRIBUTION 2019	$-2.32	HSA
2020-04-09	335894 POS CHCKING PIN 04/08 17:45 WALGREENS 1600 COAL SUPERIOR CO 06467T41 3358	$-3.21	HSA
2020-04-09	EXCESS CONTRIBUTION DISTRIBUTION 2019	$-1487.55	HSA
2020-03-25	232962 POS CHCKING SIG 03/25 04:45 BRIOVARX 800-562-6223 IL 39222775 232962	$-5.00	HSA
2020-03-23	111585 POS CHCKING PIN 03/23 15:31 KING SOOP 1650 30TH BOULDER CO 11006167 11158	$-3.68	HSA
			
		0