Calculate percentage Javascript

                                          // You can use this

function percentage(partialValue, totalValue) {
   return (100 * partialValue) / totalValue;
} 

// Example to calculate the percentage of a course progress base in their activities.

const totalActivities = 10;
const doneActivities = 2;

percentage(doneActivities, totalActivities) // Will return 20 that is 20%