-47.5% is the change from 960 to 504
Calculation steps:
[( 504 - 960 ) ÷ 960] x 100 = -47.5%
Formula
Percentage change = [(504 - 960) / 960] x 100
Subtract the new number by the original number
504 - 960 = -456
-456 ÷ 960 = -0.475
-0.475 x 100 = -47.5%