what is .15% of 100 i forgot how to do those things?

I have to differ with the last answer. 15 percent means 15 out of one hundred. and .15 also means 15 one-hundredths.

But here you said it .15%, which is 15 one hundredths of 1%, so the answer would be .0015

So, 15% = .15
and .15% = .0015

So, generally, the decimal point back two places for percent. In this case, it must be moved back another two places because you are talking about an amount in the hundredths of 1%.

= 0.15%(100)
= (0.15/100)(100)
= 0.0015(100)
= 0.15

Answer: 0.15

100%<--------> 100

10%<---------->10
5%<------------> 5

15%<---------->15

0.15%<------->0.15

(15/10000) * 100 = 1500/10000 = 15/100 = 0.15

100 x 0.15%
= 100 x 0.15/100
= 15/100
= 3/20 (0.15)

0.15 % of 100

= (0.15 / 100) x 100

= 0.15

Percentages means 'per hundred.' Thus:

0.15% × 100
= (0.15 ÷ 100) × 100
= 0.15