-9% is the change from 578 to 526
Calculation steps:
[( 526 - 578 ) ÷ 578] x 100 = -9%
Formula
Percentage change = [(526 - 578) / 578] x 100
Subtract the new number by the original number
526 - 578 = -52
-52 ÷ 578 = -0.08996539792387544
-0.08996539792387544 x 100 = -9%