-52.9% is the change from 656 to 309
Calculation steps:
[( 309 - 656 ) ÷ 656] x 100 = -52.9%
Formula
Percentage change = [(309 - 656) / 656] x 100
Subtract the new number by the original number
309 - 656 = -347
-347 ÷ 656 = -0.5289634146341463
-0.5289634146341463 x 100 = -52.9%