-76.12% is the change from 850 to 203
Calculation steps:
[( 203 - 850 ) ÷ 850] x 100 = -76.12%
Formula
Percentage change = [(203 - 850) / 850] x 100
Subtract the new number by the original number
203 - 850 = -647
-647 ÷ 850 = -0.7611764705882353
-0.7611764705882353 x 100 = -76.12%