Prediction of China’s Housing Price Based on a Novel Grey Seasonal Model

Table 2

Fitting and forecasting of accumulated data of housing price in Handan (¥/㎡).

Year	Actual value	NIPGM (1, 1)
2014	57773	57773
2015	62791	59296.05
2016	64840	67907.49
2017	75900	77769.53
2018	91349	89063.81
MAPE		3.82%
2019		101998.31
2020		116811.26
2021		133775.43