The following bond was quoted in The Wall Street Journal:

Bonds Current yield Volume Close Net change

NJ $4\mathrm{.}125\%350\mathrm{.}9\%588\mathrm{.}875\%+1\mathrm{.}125\%$

Six bonds were purchased yesterday, and $5$ bonds were purchased today. How much more did the $6$ bonds cost today? $($Negative amount should be indicated by a minus sign. Do not round intermediate calculations. Round your answer to the nearest cent.$)$