Ow my god you are totally right thx
I divided it by number 1/4 of 1000 = 250
Where i should divide it but square 1/4 of 1000 (2) = 500 (2)
Result
So we saved 30kb going into sprite sheet in this case
Which is almost 18.8%
@Keyz
I am very sorry its my mistake
Going into sprite sheet actually would save space which in this case would be 18.8%
Here are images and now small ones are 1/4 part of big image
