-6.83% is the change from 630 to 587
Calculation steps:
[( 587 - 630 ) ÷ 630] x 100 = -6.83%
Formula
Percentage change = [(587 - 630) / 630] x 100
Subtract the new number by the original number
587 - 630 = -43
-43 ÷ 630 = -0.06825396825396825
-0.06825396825396825 x 100 = -6.83%