MAPE Percentage Error

Problem

The mean absolute percentage error is 100 * mean(|actual - predicted| / |actual|).

Given the actual and predicted values (actuals nonzero), return the MAPE.

Hint

Divide each error by the actual value, then average.

case 1

in: [[100,50],[110,45]]

expected: 10

case 2

in: [[10],[10]]

expected: 0

case 3

in: [[2,4],[1,2]]

expected: 50

Starter codePython

def mape_percentage_error(actuals, preds):
    # Your code here
    pass

3 test cases · run your code against them in the editor