| 365 | q | − | ( | ( | 1500 | + | 3 20 | × | 365 | q | ) | × | 4529 10000 | + | 244731 400 | + | 1323 4 | ) | + | 300 | = | 0 |
| 方程左边 = | 365 | q | − | ( | 1500 | + | 3 20 | × | 365 | q | ) | × | 4529 10000 | − | 244731 400 | − | 1323 4 | + | 300 |
| = | 365 | q | − | ( | 1500 | + | 3 20 | × | 365 | q | ) | × | 4529 10000 | − | 257031 400 |
| = | 365 | q | − | 1500 | × | 4529 10000 | − | 3 20 | × | 365 | q | × | 4529 10000 | − | 257031 400 |
| = | 365 | q | − | 13587 20 | − | 991851 40000 | q | − | 257031 400 |
| = | 13608149 40000 | q | − | 528771 400 |
13608149 40000 | q | − | 528771 400 | = | 0 |
13608149 40000 | q | = | 0 | + | 528771 400 |
13608149 40000 | q | = | 528771 400 |
| q | = | 528771 400 | ÷ | 13608149 40000 |
| = | 528771 400 | × | 40000 13608149 |
| = | 528771 | × | 100 13608149 |
| q | = | 52877100 13608149 |
| q | = | 3.885694 |