How do you calculate percent change if on day 5, a company made £23,000 and on day 7 it only made £2,000?

1 Answer
Oct 16, 2017

Answer:

See a solution process below:

Explanation:

The formula for calculating the percent change in a value between two points in time is:

#p = (N - O)/O * 100#

Where:

#p# is the percent change - what we are solving for in this problem.

#N# is the New Value - £2000 in this problem.

#O# is the Old Value - £23,000 in this problem.

Substituting and solving for #p# gives:

#p = (£2000 - £23,000)/(£23,000) * 100#

#p = (-£21,000)/(£23,000) * 100#

#p = (-£2,100,000)/(£23,000)#

#p = -91.3# rounded to the nearest tenth.

Between Day 5 and Day 7 there was a 91.3% decrease or a -91.3% change