-27.3% is the change from 1000 to 727
Calculation steps:
[( 727 - 1000 ) ÷ 1000] x 100 = -27.3%
Formula
Percentage change = [(727 - 1000) / 1000] x 100
Subtract the new number by the original number
727 - 1000 = -273
-273 ÷ 1000 = -0.273
-0.273 x 100 = -27.3%