-77.9% is the change from 656 to 145
Calculation steps:
[( 145 - 656 ) ÷ 656] x 100 = -77.9%
Formula
Percentage change = [(145 - 656) / 656] x 100
Subtract the new number by the original number
145 - 656 = -511
-511 ÷ 656 = -0.7789634146341463
-0.7789634146341463 x 100 = -77.9%