Question

last year’s phone might’ve had a battery that lasted 15 hours this year the battery only last for 7.5 hours what was the percent of battery life decreased

Answer 1

Answer:

50% decrease

Step-by-step explanation:

Percentage decrease

formula :

difference/ original *100

difference is 15 - 7.5 = 7.5

original is the amount in the beginning which is 15

= 7.5/15 * 100

= 50% decrease

Answer 2

Answer:

%50

Step-by-step explanation: