-17.29% is the change from 850 to 703
Calculation steps:
[( 703 - 850 ) ÷ 850] x 100 = -17.29%
Formula
Percentage change = [(703 - 850) / 850] x 100
Subtract the new number by the original number
703 - 850 = -147
-147 ÷ 850 = -0.17294117647058824
-0.17294117647058824 x 100 = -17.29%