-48.97% is the change from 827 to 422
Calculation steps:
[( 422 - 827 ) ÷ 827] x 100 = -48.97%
Formula
Percentage change = [(422 - 827) / 827] x 100
Subtract the new number by the original number
422 - 827 = -405
-405 ÷ 827 = -0.48972188633615477
-0.48972188633615477 x 100 = -48.97%