-48.18% is the change from 824 to 427
Calculation steps:
[( 427 - 824 ) ÷ 824] x 100 = -48.18%
Formula
Percentage change = [(427 - 824) / 824] x 100
Subtract the new number by the original number
427 - 824 = -397
-397 ÷ 824 = -0.4817961165048544
-0.4817961165048544 x 100 = -48.18%