Calculate the coin-to-Euro ratio for PayPal EUR.

For PayPal EUR, you can redeem €25 for 2,780 coins or €100 for 11,030 coins.

• For €25: $$\frac{2,780 \text{ coins}}{25 \text{ EUR}} = 111.2 \text{ coins/EUR}$$
• For €100: $$\frac{11,030 \text{ coins}}{100 \text{ EUR}} = 110.3 \text{ coins/EUR}$$

The coin-to-Euro rate for PayPal EUR ranges from 110.3 to 111.2 coins per Euro.

For Mango, you can redeem €25 for 2,750 coins or €50 for 5,500 coins.

• For €25: $$\frac{2,750 \text{ coins}}{25 \text{ EUR}} = 110 \text{ coins/EUR}$$
• For €50: $$\frac{5,500 \text{ coins}}{50 \text{ EUR}} = 110 \text{ coins/EUR}$$

The coin-to-Euro rate for Mango is consistently 110 coins per Euro.

For Media Markt Spain, you can redeem €50 for 5,500 coins or €100 for 11,000 coins.

• For €50: $$\frac{5,500 \text{ coins}}{50 \text{ EUR}} = 110 \text{ coins/EUR}$$
• For €100: $$\frac{11,000 \text{ coins}}{100 \text{ EUR}} = 110 \text{ coins/EUR}$$

The coin-to-Euro rate for Media Markt Spain is consistently 110 coins per Euro.

Summary of coin-to-Euro exchange rates:

• PayPal EUR: $\boxed{\text{110.3 to 111.2 coins/EUR}}$
• Mango: $\boxed{\text{110 coins/EUR}}$
• Media Markt Spain: $\boxed{\text{110 coins/EUR}}$