I need to know eqn for problem I want to solve (increasing daily by y%)

DribP

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Mar 17, 2018
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Hi, I want to know how can I calculate fast this:
(sorry if it's not the appropriate thread, I didn't know where to post it):

Let's say I perform a certain behavior for x minutes per day in DAY 1. For the following example let's say it's 1 minute.
So I have this behavior which is performed for 1 minute per day. I want to increase the time I do that behavior by y % every day. In this example let's go with 2%

So for DAY 1 it will be just 1 min(60 sec)

DAY 2: 60 sec + (60 sec * 0.02)= 61.2sec
DAY 3: 61.2 sec + (61.2 sec * 0.02)= ~62.4sec
DAY 4: 62.4sec + (62.4sec * 0.02)= ~63.7sec and so on

I'll make these small improvements for z days. Let's say that's 90 days. How can I calculate this quickly instead of doing this manually? Thanks :)
 
Hi, I want to know how can I calculate fast this:
(sorry if it's not the appropriate thread, I didn't know where to post it):

Let's say I perform a certain behavior for x minutes per day in DAY 1. For the following example let's say it's 1 minute.
So I have this behavior which is performed for 1 minute per day. I want to increase the time I do that behavior by y % every day. In this example let's go with 2%

So for DAY 1 it will be just 1 min(60 sec)

DAY 2: 60 sec + (60 sec * 0.02)= 61.2sec.............................60 * (1 + 0.02)
DAY 3: 61.2 sec + (61.2 sec * 0.02)= ~62.4sec
DAY 4: 62.4sec + (62.4sec * 0.02)= ~63.7sec and so on

I'll make these small improvements for z days. Let's say that's 90 days. How can I calculate this quickly instead of doing this manually? Thanks :)

Do you know the formula to calculate "compound interest"?

If not Google it and tell us what you found.
 
Hi, I want to know how can I calculate fast this:
(sorry if it's not the appropriate thread, I didn't know where to post it):

Let's say I perform a certain behavior for x minutes per day in DAY 1. For the following example let's say it's 1 minute.
So I have this behavior which is performed for 1 minute per day. I want to increase the time I do that behavior by y % every day. In this example let's go with 2%

So for DAY 1 it will be just 1 min(60 sec)

DAY 2: 60 sec + (60 sec * 0.02)= 61.2sec
DAY 3: 61.2 sec + (61.2 sec * 0.02)= ~62.4sec
DAY 4: 62.4sec + (62.4sec * 0.02)= ~63.7sec and so on

I'll make these small improvements for z days. Let's say that's 90 days. How can I calculate this quickly instead of doing this manually? Thanks :)
You need to find a pattern in what you are calculating. Sometimes it is best NOT to do the calculation each step to see a pattern.

Day 1: 60 sec
Day 2: 60 sec*(1.02)
Day 3=[60 sec*(1.02)]*(1.02)= 60 sec*(1.02)2
...
Day 90 =????
 
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