Where did the extra N1 come from ?

I dey come .........

ask Ifa ............

Lemme ask slyisaac on this...he's a math wizard.. Wait op I be ryt back

i know it na ...

TrapQueen77:
Lemme ask slyisaac on this...he's a math wizard.. Wait op I be ryt back

my "math wizardry" isnt tis powerful......

First check it in another way

50
Spent Balance
10 40
15 25
15 10
8 2
2 0
--- ---
50 77

OR

30 20
15 5
5 0
--- ---
50 25

I don't think there is any mathematical sequence to add up the balance side and arrive at 50 so far there is no particular order of spending( on the debit side).
If you are adding the change/balance, you can not have the same value after adding up because each balance in this case is not a fraction of the original amount.