[TomasUSMC]

Scientists aren’t clear about what dark energy is, but they do know that it makes up a large chunk of our universe — about 72 percent. Another chunk, about 24 percent is dark matter and 4 percent is what stuff we know about.

What if.....ifits supposed to add up to more than 100 percent? Or less?

[Ernest_at_the_Beach]

Percentages must always add up to 100 per cent...cause the process is to take everything in the category and slice it up into 100 pieces,...then you count the pieces you want to count....!!!

Simple huh?