What is the decimal multiplier to decrease by 78%?

0.22

Step-by-step explanation:

Let assume the number to be reduced be 100

Reducing it by 78% will be:

100 - (78% of 100)

100 - (78/100) * 100

100 - 0.78 * 100

100 - 78 = 22

Since the answer is 22. Hence,

22/100 will be the multiplier

0.22 * 100 = 22