-18.18% is the change from 825 to 675
Calculation steps:
[( 675 - 825 ) ÷ 825] x 100 = -18.18%
Formula
Percentage change = [(675 - 825) / 825] x 100
Subtract the new number by the original number
675 - 825 = -150
-150 ÷ 825 = -0.18181818181818182
-0.18181818181818182 x 100 = -18.18%