-21.28% is the change from 578 to 455
Calculation steps:
[( 455 - 578 ) ÷ 578] x 100 = -21.28%
Formula
Percentage change = [(455 - 578) / 578] x 100
Subtract the new number by the original number
455 - 578 = -123
-123 ÷ 578 = -0.21280276816608998
-0.21280276816608998 x 100 = -21.28%