Question

Suppose you have a population of 150 butterflies, but a wildfire devastates the population and only 24 butterflies survive. What percent does the colony decrease by?

Answer 1

The colony decrease by
`84`%

Step-by-step explanation:

Given -

Total population of butterflies before devastation (P)
`= 150`

Total Population of butterflies that survived after the devastation
`= 24`

Total population of butterflies that did not survived
`= P-p`

Substituting the given values in above equation, we get-

Total population of butterflies that did not survived
`= 150 -24`

Percentage by which the butterfly colony decreased
`= (P-p)/(P) * 100\\= (150-24)/(150) * 100\\= 84`%