-34.9% is the change from 1000 to 651
Calculation steps:
[( 651 - 1000 ) ÷ 1000] x 100 = -34.9%
Formula
Percentage change = [(651 - 1000) / 1000] x 100
Subtract the new number by the original number
651 - 1000 = -349
-349 ÷ 1000 = -0.349
-0.349 x 100 = -34.9%