-25% is the change from 812 to 609
Calculation steps:
[( 609 - 812 ) ÷ 812] x 100 = -25%
Formula
Percentage change = [(609 - 812) / 812] x 100
Subtract the new number by the original number
609 - 812 = -203
-203 ÷ 812 = -0.25
-0.25 x 100 = -25%
Example