-53.35% is the change from 656 to 306
Calculation steps:
[( 306 - 656 ) ÷ 656] x 100 = -53.35%
Formula
Percentage change = [(306 - 656) / 656] x 100
Subtract the new number by the original number
306 - 656 = -350
-350 ÷ 656 = -0.5335365853658537
-0.5335365853658537 x 100 = -53.35%