-93.88% is the change from 850 to 52
Calculation steps:
[( 52 - 850 ) ÷ 850] x 100 = -93.88%
Formula
Percentage change = [(52 - 850) / 850] x 100
Subtract the new number by the original number
52 - 850 = -798
-798 ÷ 850 = -0.9388235294117647
-0.9388235294117647 x 100 = -93.88%