-48.39% is the change from 775 to 400
Calculation steps:
[( 400 - 775 ) ÷ 775] x 100 = -48.39%
Formula
Percentage change = [(400 - 775) / 775] x 100
Subtract the new number by the original number
400 - 775 = -375
-375 ÷ 775 = -0.4838709677419355
-0.4838709677419355 x 100 = -48.39%