Calculate relative percentage decrease change from the original (refference, initial) to a new value and the absolute change (actual difference)

Online calculator relative percentage decrease

Latest calculated relative percentage decrease operations

Relative percentage decrease change from the original number 7.62 to the new value of 7.1 = 6.824146981627% Nov 21 08:13 UTC (GMT)
Relative percentage decrease change from the original number 9,000 to the new value of 5,530.72 = 38.547555555556% Nov 21 08:13 UTC (GMT)
Relative percentage decrease change from the original number 592.23 to the new value of 1.39 = 99.765293889198% Nov 21 08:13 UTC (GMT)
Relative percentage decrease change from the original number 2,300 to the new value of 1,749 = 23.95652173913% Nov 21 08:13 UTC (GMT)
Relative percentage decrease change from the original number 183,720 to the new value of 155,699 = 15.252013934248% Nov 21 08:13 UTC (GMT)
Relative percentage decrease change from the original number 16,640 to the new value of 11,202 = 32.680288461538% Nov 21 08:13 UTC (GMT)
Relative percentage decrease change from the original number 28 to the new value of 23 = 17.857142857143% Nov 21 08:12 UTC (GMT)
Relative percentage decrease change from the original number 6.58 to the new value of 6 = 8.814589665653% Nov 21 08:12 UTC (GMT)
Relative percentage decrease change from the original number 18,324 to the new value of 15,886 = 13.304955249945% Nov 21 08:12 UTC (GMT)
Relative percentage decrease change from the original number 6.58 to the new value of 6.1 = 7.294832826748% Nov 21 08:11 UTC (GMT)
Relative percentage decrease change from the original number 54,324.2 to the new value of 52,945 = 2.538831680908% Nov 21 08:10 UTC (GMT)
Relative percentage decrease change from the original number 390 to the new value of 286 = 26.666666666667% Nov 21 08:10 UTC (GMT)
Relative percentage decrease change from the original number 3,124 to the new value of 1,268 = 59.411011523688% Nov 21 08:10 UTC (GMT)
All relative percentage decrease operations run by users


Relative percentage change (increase or decrease)

Absolute change (actual difference):

The difference between two numerical quantities, (x - y), is called absolute difference, actual change or actual difference. When y value is a refference value (the starting value that the value x is compared to) then the difference between x and y is called the absolute change.

Relative (percentage) change (increase or decrease)

The actual difference or the actual change between two values is not always a good way to compare two numbers. The actual change of one unit between numbers 3 and 2 is of much more significance than the same difference (of one unit) between the much larger numbers 9,999,999,999 and 9,999,999,998.

In this case we need to take into account the "size" of the quantities involved.

Relative change (x; y)

  • Relative change (x; y) = Absolute change / |y| = (x - y) / |y|, where y is the refference value that x is being compared to and |y| is the positive value of y.
  • For values x larger than the reference value y, the relative change is a positive number, and in this case we have a relative increase.
  • For values x that are smaller than the reference y value, the relative change is negative, and in this case we have a relative decrease.
  • The relative change is not defined if the refference value is zero, y = 0.

Examples of calculating the relative percentage change (increase or decrease)

  • Relative change (3; 2) = (3 - 2) / |2| = 1/2 = 0.5 = 50%; this change is a relative (percentage) increase
  • Relative change (9.999.999.999; 9.999.999.998) = (9.999.999.999 - 9.999.999.998) / |9.999.999.998| = 1/9.999.999.998 ≈ 0 = 0%
  • Relative change (- 3; 2) = (- 3 - 2) / |2| = - 5/2 = - 2.5 = - 250%; this change is a relative (percentage) decrease
  • Relative change (- 9.999.999.999; 9.999.999.998) = (- 9.999.999.999 - 9.999.999.998) / |9.999.999.998| = - 19.999.999.997/9.999.999.998 ≈ - 2 = - 200%; this change is a relative (percentage) decrease
  • Relative change (3; - 2) = (3 - (- 2)) / |- 2| = (3 + 2) / 2 = 5/2 = 2.5 = 250%; this change is a relative (percentage) increase
  • Relative change (9.999.999.999; - 9.999.999.998) = (9.999.999.999 - (- 9.999.999.998)) / |- 9.999.999.998| = (9.999.999.999 + 9.999.999.998) / 9.999.999.998 = 19.999.999.997/9.999.999.998 ≈ 2 = 200%; this change is a relative (percentage) increase.