-68.52% is the change from 683 to 215
Calculation steps:
[( 215 - 683 ) ÷ 683] x 100 = -68.52%
Formula
Percentage change = [(215 - 683) / 683] x 100
Subtract the new number by the original number
215 - 683 = -468
-468 ÷ 683 = -0.6852122986822841
-0.6852122986822841 x 100 = -68.52%