$cols = array(4, 100, 130, 190,    250, 320, 385, 450, 515);

to

$cols = array(4, 90, 150, 210, 250, 320, 385, 450, 515);

Notice that a sum of 10+10 units have been increased whilst the others have increased for columns 2 and 3 whilst column 5 has been shortened by 20 units - hope the output is acceptable.

$cols = array(4, 90, 150, 210, 250, 320, 385, 450, 515);

my reference numbers are like INV3307508 long so i need more space to fit all that, so this will give more space