-20.61% is the change from 825 to 655
Calculation steps:
[( 655 - 825 ) ÷ 825] x 100 = -20.61%
Formula
Percentage change = [(655 - 825) / 825] x 100
Subtract the new number by the original number
655 - 825 = -170
-170 ÷ 825 = -0.20606060606060606
-0.20606060606060606 x 100 = -20.61%