To find the lowest bank balance, let's compare the values given:
- $123.49
- $75.23
- -$123.69
- $75.89
- -$123.43
The two negative balances are -$123.69 and -$123.43. Since negative numbers represent a lower value the more negative they are, we compare these two:
- -$123.69 is lower than -$123.43.
Therefore, the lowest bank balance is -$123.69.