Looks like the number of tokens you get for 1eth has changed and also the number of tokens that you need to put in liquidity pool for bonus has changed

Earlier , 1ETH was = 200 tokens and 500-999 tokens would have gotten 10% of the profits in liquidity pool.
Now, 1ETH = 1000 tokens in pre-sale and 2500-4995 will get 10% profit participation.
Why this change?