-12.46% is the change from 578 to 506
Calculation steps:
[( 506 - 578 ) ÷ 578] x 100 = -12.46%
Formula
Percentage change = [(506 - 578) / 578] x 100
Subtract the new number by the original number
506 - 578 = -72
-72 ÷ 578 = -0.1245674740484429
-0.1245674740484429 x 100 = -12.46%