-25% is the change from 780 to 585
Calculation steps:
[( 585 - 780 ) ÷ 780] x 100 = -25%
Formula
Percentage change = [(585 - 780) / 780] x 100
Subtract the new number by the original number
585 - 780 = -195
-195 ÷ 780 = -0.25
-0.25 x 100 = -25%
Example