-89.18% is the change from 850 to 92
Calculation steps:
[( 92 - 850 ) ÷ 850] x 100 = -89.18%
Formula
Percentage change = [(92 - 850) / 850] x 100
Subtract the new number by the original number
92 - 850 = -758
-758 ÷ 850 = -0.8917647058823529
-0.8917647058823529 x 100 = -89.18%