-73.3% is the change from 1000 to 267
Calculation steps:
[( 267 - 1000 ) ÷ 1000] x 100 = -73.3%
Formula
Percentage change = [(267 - 1000) / 1000] x 100
Subtract the new number by the original number
267 - 1000 = -733
-733 ÷ 1000 = -0.733
-0.733 x 100 = -73.3%