-65.1% is the change from 1000 to 349
Calculation steps:
[( 349 - 1000 ) ÷ 1000] x 100 = -65.1%
Formula
Percentage change = [(349 - 1000) / 1000] x 100
Subtract the new number by the original number
349 - 1000 = -651
-651 ÷ 1000 = -0.651
-0.651 x 100 = -65.1%