-68.7% is the change from 706 to 221
Calculation steps:
[( 221 - 706 ) ÷ 706] x 100 = -68.7%
Formula
Percentage change = [(221 - 706) / 706] x 100
Subtract the new number by the original number
221 - 706 = -485
-485 ÷ 706 = -0.6869688385269122
-0.6869688385269122 x 100 = -68.7%