-0.33% is the change from 906 to 903
Calculation steps:
[( 903 - 906 ) ÷ 906] x 100 = -0.33%
Formula
Percentage change = [(903 - 906) / 906] x 100
Subtract the new number by the original number
903 - 906 = -3
-3 ÷ 906 = -0.0033112582781456954
-0.0033112582781456954 x 100 = -0.33%