-48.69% is the change from 647 to 332
Calculation steps:
[( 332 - 647 ) ÷ 647] x 100 = -48.69%
Formula
Percentage change = [(332 - 647) / 647] x 100
Subtract the new number by the original number
332 - 647 = -315
-315 ÷ 647 = -0.4868624420401855
-0.4868624420401855 x 100 = -48.69%