-54.56% is the change from 647 to 294
Calculation steps:
[( 294 - 647 ) ÷ 647] x 100 = -54.56%
Formula
Percentage change = [(294 - 647) / 647] x 100
Subtract the new number by the original number
294 - 647 = -353
-353 ÷ 647 = -0.5455950540958269
-0.5455950540958269 x 100 = -54.56%