-32.2% is the change from 1000 to 678
Calculation steps:
[( 678 - 1000 ) ÷ 1000] x 100 = -32.2%
Formula
Percentage change = [(678 - 1000) / 1000] x 100
Subtract the new number by the original number
678 - 1000 = -322
-322 ÷ 1000 = -0.322
-0.322 x 100 = -32.2%