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@ 2017-07-25T14:23:40Z

<?php

$val1 = 1122;
$val2 = 280;
echo round((($val1 - $val2) / $val1) * 100).'%';

Output
Performance
VLD
References
Branches

round: documentation ( source)

preferences:dark modelive previewkey bindings

105.45 ms | 1463 KiB | 5 Q