-69.55% is the change from 706 to 215
Calculation steps:
[( 215 - 706 ) ÷ 706] x 100 = -69.55%
Formula
Percentage change = [(215 - 706) / 706] x 100
Subtract the new number by the original number
215 - 706 = -491
-491 ÷ 706 = -0.6954674220963173
-0.6954674220963173 x 100 = -69.55%