Sorry, but this is a completely useless information. How does the [MeasureRAMUsedPercentDecimal] measure looks like? Post its code please. Most probably you didn't set it to return a percentual value (by adding proper MinValue and MaxValue options). The [MeasureAverageCPU] measure doesn't require those options to be set, because:
The value of a CPU measure is a percentage from 0 to 100.
However the [MeasureRAMUsedPercentDecimal] measure might require it.
The code of the container meter ([RAMBarContainer]) would also be needed.
So post the whole code first please.