-11% is the change from 1000 to 890
Calculation steps:
[( 890 - 1000 ) ÷ 1000] x 100 = -11%
Formula
Percentage change = [(890 - 1000) / 1000] x 100
Subtract the new number by the original number
890 - 1000 = -110
-110 ÷ 1000 = -0.11
-0.11 x 100 = -11%