Can You Help Me About pending Order in grid ? Please

[NEMO]

I have create pending order in grid and a bit of confuse the position
when i'm place order for example 3 order in grid 250 Sell Position
my first order come 0.87000 (it's come as i setting on)
but Second Order 0.86750 <--- it's the price i expect as 0.87250 but it's come like this
Cand any one Help me How Do i need to change for input

[l'andorrà]

@nemo Could you please share the link to the project instead of the image? That would help.