-31.99% is the change from 669 to 455
Calculation steps:
[( 455 - 669 ) ÷ 669] x 100 = -31.99%
Formula
Percentage change = [(455 - 669) / 669] x 100
Subtract the new number by the original number
455 - 669 = -214
-214 ÷ 669 = -0.31988041853512705
-0.31988041853512705 x 100 = -31.99%