-10.2% is the change from 843 to 757
Calculation steps:
[( 757 - 843 ) ÷ 843] x 100 = -10.2%
Formula
Percentage change = [(757 - 843) / 843] x 100
Subtract the new number by the original number
757 - 843 = -86
-86 ÷ 843 = -0.10201660735468565
-0.10201660735468565 x 100 = -10.2%