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 23.69 to the new value of 12.75 = 46.179822710004% Jan 17 20:06 UTC (GMT)
Relative percentage decrease change from the original number 5,723 to the new value of 5,233 = 8.561943036869% Jan 17 20:03 UTC (GMT)
Relative percentage decrease change from the original number 725 to the new value of 675 = 6.896551724138% Jan 17 20:02 UTC (GMT)
Relative percentage decrease change from the original number 7,953 to the new value of 3 = 99.962278385515% Jan 17 20:02 UTC (GMT)
Relative percentage decrease change from the original number 2,540 to the new value of 2,348 = 7.55905511811% Jan 17 20:02 UTC (GMT)
Relative percentage decrease change from the original number 42,713,526 to the new value of 34,057,395 = 20.265550074232% Jan 17 20:01 UTC (GMT)
Relative percentage decrease change from the original number 1,450 to the new value of 30 = 97.931034482759% Jan 17 19:59 UTC (GMT)
Relative percentage decrease change from the original number 1,262 to the new value of 8,066,382 = - 639,074.484944532488% Jan 17 19:56 UTC (GMT)
Relative percentage decrease change from the original number 423 to the new value of 189 = 55.31914893617% Jan 17 19:51 UTC (GMT)
Relative percentage decrease change from the original number 1,231,963.21 to the new value of 985,099 = 20.038277766428% Jan 17 19:49 UTC (GMT)
Relative percentage decrease change from the original number 1,493,384.44 to the new value of 1,064,652.33 = 28.708757002986% Jan 17 19:48 UTC (GMT)
Relative percentage decrease change from the original number 141,468 to the new value of 46,077 = 67.429383323437% Jan 17 19:46 UTC (GMT)
Relative percentage decrease change from the original number 274 to the new value of 190 = 30.656934306569% Jan 17 19:45 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.