-67.92% is the change from 667 to 214
Calculation steps:
[( 214 - 667 ) ÷ 667] x 100 = -67.92%
Formula
Percentage change = [(214 - 667) / 667] x 100
Subtract the new number by the original number
214 - 667 = -453
-453 ÷ 667 = -0.679160419790105
-0.679160419790105 x 100 = -67.92%