PPT looking at calculating the percentage change given the starting and final values. Since 100 30 original price sale price 70 of the original price is 420. Percent Change Second Value First Value First Value x 100 Note.
A is the original amount.
Lets say you are tracking the quoted price of a security. Percent increase 60. Percent Change Second Value First Value First Value x 100 Note. Divide the percentage change by the period of time between the two numbers.