-15.26% is the change from 603 to 511
Calculation steps:
[( 511 - 603 ) ÷ 603] x 100 = -15.26%
Formula
Percentage change = [(511 - 603) / 603] x 100
Subtract the new number by the original number
511 - 603 = -92
-92 ÷ 603 = -0.15257048092868988
-0.15257048092868988 x 100 = -15.26%