First, calculate the difference between the two prices for each date. You'll need to pick one set of numbers to be the starting point on which the percentage difference will be calculated ...

It is possible to look at the difference between two numbers and work out the percentage increase or the percentage decrease. This is known as percentage change. Often goods are bought for one ...

It is possible to look at the difference between two numbers and work out the percentage increase or the percentage decrease. This is known as percentage change. Often goods are bought for one ...