Question

1. To increase an amount by 45% multiply by

2. To decrease an amount by 30% multiply by ​

Answer 1

1. 0.55

2. Though a, a 30% increase, that's a multiplier of 1.3, a 30% decrease is a multiplier by, of . 7. And so, we just multiply 100 by each one of those multipliers. So, 100*1.3*.

Explanation: