-15.4% is the change from 604 to 511
Calculation steps:
[( 511 - 604 ) ÷ 604] x 100 = -15.4%
Formula
Percentage change = [(511 - 604) / 604] x 100
Subtract the new number by the original number
511 - 604 = -93
-93 ÷ 604 = -0.15397350993377484
-0.15397350993377484 x 100 = -15.4%