Answer: 25%
Choices given are: 15%,20%,25%,30% or 35%
If a customer is currently spending $40 per month on his current service plan and a representative offered him the same plan at $30 per month, he will tell the customer, “it will save you 25%.”
Savings is computed as:
$40-$30/$40
10/40
¼
.25 or 25%