-82.12% is the change from 850 to 152
Calculation steps:
[( 152 - 850 ) ÷ 850] x 100 = -82.12%
Formula
Percentage change = [(152 - 850) / 850] x 100
Subtract the new number by the original number
152 - 850 = -698
-698 ÷ 850 = -0.8211764705882353
-0.8211764705882353 x 100 = -82.12%