The portion of a change in quantity, amount or value.
The percentage difference of the current price from the previous trading day, week, quarter or year.
Show the fluctuations of crime from year to year and provide an added perspective to study crime. Calculated by taking the number of offenses for the current year, minus the number of offenses for the previous year. Then divide the difference by the number of offenses for the previous year, and multiply the dividend by 100.