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Old 04-13-2023 | 07:10 PM
  #32  
Sled
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Joined: Feb 2015
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From: FO
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Originally Posted by oncewasgood
A 30% reduction from Covid highs. 30% less than 130% is 100% correct?
I'm not sure what the actual percentages are today vs. during COVID, but no...percentages don't work that way. Generally speaking, percentages taken serially are multiplicative not additive. Here's a simple example:

- You have $100 to start with. You decide to play roulette at the casino this weekend.
- You earn a 30% return, so now you have $130. You take this and put it in your piggy bank.
- Next weekend you go back to the casino to play roulette again.
- This time you have a 30% loss. 30% of $130 = 0.3*$130 = $39....so you lose $39.
- This means you take the $130 from your piggy bank, and subtract $39 = $91 (so the dollar amounts are additive: $100+$30-$39)
- However, if you wanted to get the final amount in one step using percentages you would need to multiply, so: 100% * 130% *70% = 100/100 * 130/100 * 70/100 = 100*130*70 / 1,000,000 = 91/100 = 91%
(or...1.0*1.3*.7 = .91).
- The word "percent" is derived from Latin "per centum" which means "by one hundred"

Now back to the bid....where everyone is going to be a 75FO.
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