[Retracted] Sales Forecast of Marketing Brand Based on BP Neural Network Model

Table 6

Data after MBCC denoising.

Years	Monthly sales
	The first quarter			The second quarter			The third quarter			The fourth quarter
	January	February	March	April	May	June	July	August	September	October	November	December
2015	34	18	186	145	619	503	409	97	125	156	64	127
2016	135	315	325	613	691	770	774	740	290	339	234	371
2017	233	711	582	596	1314	1545	1778	1407	1037	1335	1115	1384
2018	1028	649	783	1510	1601	1691	1623	1192	1542	1416	1290	966
2019	643	689	1119	917	1357	1015	1417	1109	1512	967	1171	1283
2020	1395	1245	2475	2749	2301	2067	1989	1833	1658	2035	1850	1749