Please help me to resolve the pivot sum option, data is having both the figures of + & - nad net off value will be Zero, but in pivot instead of Zero , value -4.54747E-13 is reflecting.
Is normal due to 15 floating point precision of Excel (length of number is max 15 digits long). Sometimes very small numbers show up where you would expect 0.
But it seems you have simply formatted it as text and not number.