{(500-50)/500}x100=(?). 500 to 50 percent decrease provides the comprehensive information on how to find what is the percent of decrease from 500 to 50.

__500 to 50 percent increase__

(500 - 50)/500 x 100 = (?)

= 450/500 x 100

= 90%

(500 - 50)/500 x 100 = 90%

Hence,

the percent of decrease from 500 to 50 is 90%

__where,__

500 is the base or reference quantity,

50 is the relative or decreased quantity,

450 is the difference between base and decreased quantity,

90% is the percent decrease.

The result of difference between the reference quantity 500 and decreased quantity 50 divided by the reference quantity 500, multiplied with 100 is the percent of decrease from 500 to 50. The below is the step-by-step work shows how to find what is the percent of decrease from 500 to 50 by using the mathematical formula.
step 1 Observe the input parameters, values and what to be found:

__Input values:__

Base or reference value X = 500

Decreased or relative value Y = 50

__What to be found:__

Find the percent of decrease from 500 to 50.

(50 - 500)/60 x 100 = (?)%

step 2 Find the difference between reference quantity 500 and decreased quantity 50:

500 - 50 = 450

step 3
Divide the difference 450 by the reference quantity 500, and multiply the result with 100:

450/500 x 100 = 90%

Hence,

90% is the percent of decrease from 500 to 50.