-92.94% is the change from 850 to 60
Calculation steps:
[( 60 - 850 ) ÷ 850] x 100 = -92.94%
Formula
Percentage change = [(60 - 850) / 850] x 100
Subtract the new number by the original number
60 - 850 = -790
-790 ÷ 850 = -0.9294117647058824
-0.9294117647058824 x 100 = -92.94%