| Training set | The first t − 1 | The first t − 2 | The first t − 3 | The first t − 4 |
| ARIMA Model MAPE | 1.5691% | 2.0427% | 2.4952% | 2.6728% |
| Combined Model MAPE | 0.9071% | 1.6206% | 3.1094% | 3.5059% |