when i ran the ProFi for recursive function,Time of the recursive function is higher than total amount of  execution time. How was it happened?

 TOTAL TIME = 0.635156
| FILE                                              : FUNCTION                                : LINE                : TIME        : RELATIVE    : CALLED      |
| ./mymath.lua                                      : fact                                    :   20                : 3565.547    : 561365.52%  :   60003     |