Description:
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The operator % can not calculate the following calculation:

Wrong calculation:
echo (16.49*100)%100; // prints 48  (should be 49)

Right calculations:
echo (13.49*100)%100; // prints 49
echo (14.49*100)%100; // prints 49
echo (15.49*100)%100; // prints 49



Test script:
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echo "A wrong calculation:";
echo "<br>(16.49*100)%100 = ".((16.49*100)%100)." *By PHP";
echo "<br>(16.49*100)%100 = 1649%100 = 49 *By Hand";

echo "<br><br>A right calculation:";
echo "<br>(15.49*100)%100 = ".((15.49*100)%100)." *By PHP";
echo "<br>(15.49*100)%100 = 1549%100 = 49 *By Hand";


Expected result:
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All results should be the same value (by hand == by PHP)