Why is it important whether the pokemon was powered up to calculate IVs?
All IV calculators ask whether the pokemon already was powered up. Why does this matter?
https://pokemongo.gamepress.gg/pokemon-stats-advanced
Quote: "You can think of Additional CP Multiplier as just adding levels to the original CP multiplier you caught it at, so it is equivalent to just catching it at the new level in the first place."
As I understand this, powering up means increasing the level of a pokemon. Which should be equivalent to catching a pokemon with a higher level.
So why does the fact, that a pokemon was powered up after beeing caught change the IV calculation?
Answers
FYI PokeGenie for iOS does NOT ask this, and it seems to be good enough at estimating the level from the graphic. Once in a blue moon it will ask me to confirm the level, then I know (in almost all cases) I can choose the integer level and not the N.5 level (don't power up anything until at the final evolution and you know the moveset will be worth it).
Going off topic from this thread...
From my experience, PokeGenie only has problems when
-There is something wrong with the screenshot being imported.
-The trainer level is not set correctly, such as after a player level up.
-The pokemon has lower IVs so there are more combinations possible to equal the given CP and HP. Adding in appraisal information can usually narrow this down a bit more.
-The pokemon is a low enough level that it doesn't have higher than 10 CP and/or 10 HP. If a pokemon's stats would be calculated to a CP or HP less than 10, then it is rounded up, in which case no IV calculator will help.
The main problems with screenshots I have encountered:
-The pokemon is obscuring the level arc. For example, Golbat's flapping wings.
-The color of the background is too light and blends in with the arc. For example, occasionally on Normal type pokemon.
-The pokemon information page was accidentally scrolled down a little bit before the screenshot was taken. This can prompt manually inputting the CP or adjusting the level arc.
Only powered up pokemons will have an x.5 in level (lv20.5, lv21.5, lv30.5 etc). Pokemons that are either caught or hatched will always have its level as a whole number without the decimal x.5. To make calculations easier for a non powered up caught pokemon, that option can be left unchecked in order to eliminate the possibility of a powered up pokemon level interfere with the result.