-93.18% is the change from 850 to 58
Calculation steps:
[( 58 - 850 ) ÷ 850] x 100 = -93.18%
Formula
Percentage change = [(58 - 850) / 850] x 100
Subtract the new number by the original number
58 - 850 = -792
-792 ÷ 850 = -0.9317647058823529
-0.9317647058823529 x 100 = -93.18%