-11.76% is the change from 850 to 750
Calculation steps:
[( 750 - 850 ) ÷ 850] x 100 = -11.76%
Formula
Percentage change = [(750 - 850) / 850] x 100
Subtract the new number by the original number
750 - 850 = -100
-100 ÷ 850 = -0.11764705882352941
-0.11764705882352941 x 100 = -11.76%