Question

To decrease an amount by 4% what single multiplier would u use ??

Answer 1

Multiply by .96 and your answer should be given

Answer 2

If you decrease something by 4 percent,

you are  keeping (100% - 4%) or 96% of the original

so multiply by the original amount by 96 percent or .96

If you have 100 pennies, and you  give 4 away ( 4 percent decrease), you still have 96 pennies.  You are keeping 96 percent of what you started with.  This works no matter how much you start with.

Example:

you have 40 dollars

4% decrease

40 * .04 =  1.6 take this away

40 - 1.6 = 38.4 left

you keep 96 percent

40 * .96 = 38.4 left