-67.23% is the change from 656 to 215
Calculation steps:
[( 215 - 656 ) ÷ 656] x 100 = -67.23%
Formula
Percentage change = [(215 - 656) / 656] x 100
Subtract the new number by the original number
215 - 656 = -441
-441 ÷ 656 = -0.6722560975609756
-0.6722560975609756 x 100 = -67.23%