I haven't bought bitcoins in blockchain.info as it is not available in my country although to get to get the most accurate percent rate of your transaction, you should have get the buying and selling price when you made your order not in the price you paid and it's current price now since bitcoin is highly volatile so the price you have seen a few hours ago may not be the same now. Looking at the charts, it's constantly falling, probably because of the price correction
$13,236.00 USD (-9.46%)
Look at your order history, blockchain.info promised that you will get an amount of .00912182
BTC so for obvious reasons, you got an exact amount of bitcoins in your wallet
I paid £103 to buy bitcoins on Blockchain.info
and that translates to only £85.8 in my wallet? (see below)