Calculate average percentage difference by subtracting, then dividing price differences. Average percentage difference helps foresee market trends and irrational periods. Understanding this metric can ...

Calculating how far a number has declined from one year to the next is pretty easy if you are only considering a one year period. You subtract the current year's number from last year's number, then ...

An amount can be increased or decreased by a certain percentage to change its size. A reverse percentage problem involves finding the original amount before a percentage increase or decrease. The ...