# Note on Gold to EWC conversion rates

Trade tokens have a Gold value when overflowing and I think it can be relevant to the Gold to EWC conversion rates calculation, because when we make a trade paying gold to get EWCs, we also lose the Gold value of the token.

Here are the conversion rates for overflowing trade tokens:

• Common (C) → 250 Gold
• Rare (R) → 500 Gold
• Epic (E) → 1000 Gold
• Legendary (L) → 2000 Gold

To get Gold to EWC conversion rates I used these formulas:

• Shop and EWC Store:
ewcValue/goldValue

(ewcValue*quantity) / ((goldValue/2)*quantity + tokenGoldValue)

(goldValue being the value of 1 card in the shop)

Here are the results before and after the changes:

EWC/Gold Before Changes:

Shop

• C = 1/10 = 0.100
• R = 5/100 = 0.050
• E = 20/1000 = 0.020
• L = 1500/40000 = 0.038

• C = (1*250) / ((10/2)*250 + 250) = 0.167
• R = (5*50) / ((100/2)*50 + 500) = 0.083
• E = (20*10) / ((1000/2)*10 + 1000) = 0.033
• L = (1500*1) / ((40000/2)*1 + 2000) = 0.068

EWC Store

• 5000/150000 = 0.033

EWC/Gold After Changes:

Shop

• C = 1/10 = 0.100
• R = 5/50 = 0.100
• E = 20/200 = 0.100
• L = 1500/15000 = 0.100

• C = (1*250) / ((10/2)*250 + 250) = 0.167
• R = (5*50) / ((50/2)*50 + 500) = 0.143
• E = (20*10) / ((200/2)*10 + 1000) = 0.100
• L = (1500*1) / ((15000/2)*1 + 2000) = 0.158

EWC Store

• 5000/100000 = 0.050

(results are rounded)

So here are the Gold spending priorities if when taking into account the Gold value of trade tokens:

Before Changes:

2. C shop
5. R shop
6. L shop
7. E trade AND EWC Store
8. E shop

After Changes: