-6.4% is the change from 625 to 585
Calculation steps:
[( 585 - 625 ) ÷ 625] x 100 = -6.4%
Formula
Percentage change = [(585 - 625) / 625] x 100
Subtract the new number by the original number
585 - 625 = -40
-40 ÷ 625 = -0.064
-0.064 x 100 = -6.4%
Example