💰Cost

$$Tier~up~Cost=[Lay_{n}* x_e] +[Orb_{n}*y_e^2]$$

$$Lay_{n}=Lay~Mining~per~Day[Lev.\alpha]$$

$$Orb_{n}=Lay~Mining~per~Day[Lev.\alpha]*{\sqrt {Lay_{p}}\over \ \sqrt {Orb_{p}}}$$

$$Lay_{p}=Lay~Price \\Orb_{p}=Orb~Price$$

All costs for buildings are determined by the formula above. The cost is based on the amount of $Lay 007 mined. Because it is based on the amount of Lay mined, the Lay value is a fixed cost based on the tier and level of the building, but $Orb is a variable cost. The reason for the variable cost of $Orb is that when the price of $Orb is high, it is unlikely that further construction or upgrades will be triggered.

Evolution Cost

$$x_e=15$$

$$y_e=15$$

Coefficient of x and y for each tier & level

Lev	common	rare	epic	unique	legendary
1 Lev	1.00	1.12	1.24	1.36	1.48
2 Lev	1.04	1.16	1.28	1.40	1.52
3 Lev	1.08	1.20	1.32	1.44	1.56

The table above shows the coefficients by Tier & Level for the values of x, y. In other words, the values of x, y increase as the level and tier increase.

$Lay Cost

	common	rare	epic	unique	legendary
Evolution	0.9720	3.2400	13.3650	76.5461

$Orb Cost = Dynamic Cost

The value of x_e and y_e may be adjusted by governance.

Note: Please note that all figures are subject to change by governance.

Note: The prices of $ORB and $LAY are based on a 24-hour moving average.

Note: Keep in mind that all tokens and NFTs spent on the upgrade are irrevocable and non-refundable.