Macro to Match Items in Col C

I have values in Col C and need the values that match to be deleted as follows


1) Where there is a value in Col C with say a positive value eg 2150 and there is a single value that is negative -2150 then the rows containing these values are to be deleted (I have highlighted all the items in yellow where the positive value and negative values equal to zero). I have also put numbers next to each of the yellow items that match off

2) Where there are several values in Col C that sums to say R 925.45 and there are several other values that sums up to these but they are opposite in value for e.g. if the sum of several values is say R 25000 and there are negative values adding up to- R 25000 then these must be deleted. I have shown these with different colours where several say negative values sums up to several positive values and vice versa



It would be appreciated if someone could kindly assist me