if you have 0.05% what is the growth or decay factor

Answer 1

Since 0.05 percent is positive you have a GROWTH factor. The growth factor is expressed as a decimal number rather than a percent, and it includes the baseline amount, which is 100% to which you add, in this case, 0.05%. So, 100% as a decimal is 1.0, and you add to this 0.05%, written as a decimal, which is 0.0005. Thus, your growth factor is 1.0005.

This is a growth FACTOR, which implies multiplication. If you take your baseline amount and MULTIPLY by the growth factor, you will get the new amount over the given amount of time, which we don't know in this case and which you are not required to give here. I just wanted to provide more information, so that you could see the reason it is called a growth factor and why it is useful.

Answer 2

There's no decay. If the % is negative; then it's a decay.

Unless you had a better % previously.