-67.77% is the change from 667 to 215
Calculation steps:
[( 215 - 667 ) ÷ 667] x 100 = -67.77%
Formula
Percentage change = [(215 - 667) / 667] x 100
Subtract the new number by the original number
215 - 667 = -452
-452 ÷ 667 = -0.6776611694152923
-0.6776611694152923 x 100 = -67.77%