-67.72% is the change from 663 to 214
Calculation steps:
[( 214 - 663 ) ÷ 663] x 100 = -67.72%
Formula
Percentage change = [(214 - 663) / 663] x 100
Subtract the new number by the original number
214 - 663 = -449
-449 ÷ 663 = -0.6772247360482655
-0.6772247360482655 x 100 = -67.72%