Are you market trader, shopkeeper or other small independent, it can be handy for payment of Square. You plug a device into the headset jack of your iPhone and can start accepting credit card payments. Square announced today a measure that could make them even more popular. The additional transaction fee of $0.15 will be too fell. Sellers only pay a commission rate on top of the transaction amount. That percentage is also increased from 2.5 to 2.75%, taking the service has become more interesting for small transactions. Square is so still cheaper than those achieved by most credit card companies charge.