-63.72% is the change from 667 to 242
Calculation steps:
[( 242 - 667 ) ÷ 667] x 100 = -63.72%
Formula
Percentage change = [(242 - 667) / 667] x 100
Subtract the new number by the original number
242 - 667 = -425
-425 ÷ 667 = -0.6371814092953523
-0.6371814092953523 x 100 = -63.72%