How can I execute this math operation in PHP? -

i trying operation:

$math = 1.30644 - 1.3063

i want result difference in way:

1.4 (which 64,4 - 63) because dealing pips. how can achieve result.

what tried:

$math = 1.30644 - 1.3063  echo $math; // output -0.3063 want output 1.4

this should want:

$math = 1.30644 - 1.3063; while ($math < 1) {     $math *= 10; } var_dump($math); //float(1.4000000000003)

you round result round function.

it works number:

$math = 64.4 - 63; while ($math < 1) {     $math *= 10; } var_dump($math); //float(1.4)

Brande