-13.1% is the change from 588 to 511
Calculation steps:
[( 511 - 588 ) ÷ 588] x 100 = -13.1%
Formula
Percentage change = [(511 - 588) / 588] x 100
Subtract the new number by the original number
511 - 588 = -77
-77 ÷ 588 = -0.13095238095238096
-0.13095238095238096 x 100 = -13.1%