I am trying to evaluate this expression, it is supposed to give TRUE but, it is giving false. 

sum((<a>5923.17</a>,<a>5956.29</a>,<a>5989.28</a>)) = <a>17868.74</a>

But, for this expression it is giving as expected.

sum((<a>5922.78</a>,<a>-5955.78</a>,<a>5988.74</a>)) = <a>5955.74</a>

Thanks

 Ankit