-56.12% is the change from 670 to 294
Calculation steps:
[( 294 - 670 ) ÷ 670] x 100 = -56.12%
Formula
Percentage change = [(294 - 670) / 670] x 100
Subtract the new number by the original number
294 - 670 = -376
-376 ÷ 670 = -0.5611940298507463
-0.5611940298507463 x 100 = -56.12%