What is the unit price after USDT recharge?

USDT recharge:

100 USDT

Rotating Residential IP (country) $8.8/GB  Rotating Residential IP (city) $12.5/GB Rotating Datacenter IP $0.9/GB

500 USDT

Rotating Residential IP (country) $7.4/GB  Rotating Residential IP (city) $11.8/GB Rotating Datacenter IP $0.8/GB

1000 USDT

Rotating Residential IP (country) $5.2/GB  Rotating Residential IP (city) $11/GB Rotating Datacenter IP $0.72/GB