Dear All

There is mistake in in column [cost EV-AC versus 6.0practice manual] = -200, this is wrong value, this should be 200.

Actually my intension to write this topic is not up to this one, and I want to know about, what is universal way (mathematical rule) to write a negative number.

For negative sign, PMBOK is using two types of notations at a time, small brackets (any number) as well as minus sign "- any number".

Small bracket is not a mathematical language, or any accounting language.