-1% is the change from 899 to 890
Calculation steps:
[( 890 - 899 ) ÷ 899] x 100 = -1%
Formula
Percentage change = [(890 - 899) / 899] x 100
Subtract the new number by the original number
890 - 899 = -9
-9 ÷ 899 = -0.010011123470522803
-0.010011123470522803 x 100 = -1%