-29.88% is the change from 850 to 596
Calculation steps:
[( 596 - 850 ) ÷ 850] x 100 = -29.88%
Formula
Percentage change = [(596 - 850) / 850] x 100
Subtract the new number by the original number
596 - 850 = -254
-254 ÷ 850 = -0.2988235294117647
-0.2988235294117647 x 100 = -29.88%