-97.18% is the change from 850 to 24
Calculation steps:
[( 24 - 850 ) ÷ 850] x 100 = -97.18%
Formula
Percentage change = [(24 - 850) / 850] x 100
Subtract the new number by the original number
24 - 850 = -826
-826 ÷ 850 = -0.971764705882353
-0.971764705882353 x 100 = -97.18%