-75.3% is the change from 1000 to 247
Calculation steps:
[( 247 - 1000 ) ÷ 1000] x 100 = -75.3%
Formula
Percentage change = [(247 - 1000) / 1000] x 100
Subtract the new number by the original number
247 - 1000 = -753
-753 ÷ 1000 = -0.753
-0.753 x 100 = -75.3%