-9.7% is the change from 1000 to 903
Calculation steps:
[( 903 - 1000 ) ÷ 1000] x 100 = -9.7%
Formula
Percentage change = [(903 - 1000) / 1000] x 100
Subtract the new number by the original number
903 - 1000 = -97
-97 ÷ 1000 = -0.097
-0.097 x 100 = -9.7%