100 credits for $0.2 USD ~$0.00200 USD per credit
250 credits for $0.5 USD ~$0.00200 USD per credit
500 credits for $1 USD ~$0.00200 USD per credit
1000 credits for $2 USD ~$0.00200 USD per credit
2500 credits for $4.9 USD ~$0.00196 USD per credit
5000 credits for $9.5 USD ~$0.00190 USD per credit
10000 credits for $18 USD ~$0.00180 USD per credit
25000 credits for $40 USD ~$0.00160 USD per credit
50000 credits for $75 USD ~$0.00150 USD per credit
100000 credits for $140 USD ~$0.00140 USD per credit
200000 credits for $260 USD ~$0.00130 USD per credit
500000 credits for $600 USD ~$0.00120 USD per credit