-32.3% is the change from 1000 to 677
Calculation steps:
[( 677 - 1000 ) ÷ 1000] x 100 = -32.3%
Formula
Percentage change = [(677 - 1000) / 1000] x 100
Subtract the new number by the original number
677 - 1000 = -323
-323 ÷ 1000 = -0.323
-0.323 x 100 = -32.3%