getDiffWeight method
Implementation
num getDiffWeight(String weighingMeasureTypeIdStr) {
final num? loadingValue =
_getWeightValue(loadingWeighingTO, weighingMeasureTypeIdStr);
final num? finalValue = _getWeightValue(
finalTblTRLoadingWeighingTO.value, weighingMeasureTypeIdStr);
return (loadingValue! - finalValue!).abs();
}