How do I have to send the payment to get charged correct amount.

[tbmslive]

Hi 

I am trying to use squareup.com on my website when I send 100 it charge me £1 and when I send 230 it charge me 23.00, I am not sure if its considering in pences or pounds.

For e.g.

$request_body = array (
"card_nonce" => $nonce,
"amount_money" => array (
"amount" => 230, //$amt_gbp,
"currency" => "GBP"
),

Please help !!