-0.68% is the change from 591 to 587
Calculation steps:
[( 587 - 591 ) ÷ 591] x 100 = -0.68%
Formula
Percentage change = [(587 - 591) / 591] x 100
Subtract the new number by the original number
587 - 591 = -4
-4 ÷ 591 = -0.00676818950930626
-0.00676818950930626 x 100 = -0.68%