% Increase numbers by percentages of intial values (percentage increase) and calculate the absolute change (actual difference)

Increase number by percentage of its value, calculate percentage increase

Latest numbers increased by percentage of value

Increase numbers by percentage of their initial value and calculate the absolute percentage change (difference)

How to calculate the new value of a number by increasing it by percentage of its initial value and calculate the absolute percentage change (difference)?

  • New value = Initial value + Absolute percentage change (difference)
  • Absolute percentage change (difference) = Percentage increase % × Initial value
  • => New value = Initial value + Percentage increase % × Initial value = (1 + Percentage increase %) × Initial value
  • In conclusion:

    New value = (1 + Percentage increase %) × Initial value

    Initial value = New value / (1 + Percentage increase %)

    Absolute percentage change (difference) = Percentage increase % × Initial value = New value - Initial value

Examples of calculations on how to increase a number by percentage of its initial value (percentage increase) and calculate the absolute percentage change (difference):

  • If Percentage increase % = 20%, (1 + Percentage increase %) = 1 + 20% = 100/100 + 20/100 = 120/100 = 1.20 => Number increased by value percentage = 1.20 × Initial value, and Initial value = Number increased by value percentage / 1.20; Absolute percentage change = New value - Initial value;
  • If Percentage increase % = 5%, (1 + Percentage increase %) = 1 + 5% = 100/100 + 5/100 = 105/100 = 1.05 => Number increased by value percentage = 1.05 × Initial value, and Initial value = Number increased by value percentage / 1.05; Absolute percentage change = New value - Initial value;
  • If Percentage increase % = 124%, (1 + Percentage increase %) = 1 + 124% = 100/100 + 124/100 = 224/100 = 2.24 => Number increased by value percentage = 2.24 × Initial value, and Initial value = Number increased by value percentage / 2.24; Absolute percentage change = New value - Initial value;
  • If Percentage increase % = -8%, (1 + Percentage increase %) = 1 - 8% = 100/100 - 8/100 = 92/100 = 0.92 => Number increased by value percentage = 0.92 × Initial value, and Initial value = Number increased by value percentage / 0.92; in this case we have in fact a decreasing of the value of the number; Absolute percentage change = New value - Initial value.