Question

Over time, the value of a car decreases. If the value of a car purchased for Php

1,250,000 decreases to Php 1,000,000 throughout a year, what is the rate of change?

Answer 1

-20%

Explanation:

Current value of an item and divide it by the value from an earlier period. Subtract one and multiply the resulting number by 100 to give it a percentage representation.

ROC = (current value/previous value​ − 1) x 100

ROC = (1,000,000/1,250,000 - 1) x 100

ROC = (0.8 - 1) x 100

ROC = -0.2 x 100

ROC = -20