-68.22% is the change from 667 to 212
Calculation steps:
[( 212 - 667 ) ÷ 667] x 100 = -68.22%
Formula
Percentage change = [(212 - 667) / 667] x 100
Subtract the new number by the original number
212 - 667 = -455
-455 ÷ 667 = -0.6821589205397302
-0.6821589205397302 x 100 = -68.22%