-40.46% is the change from 875 to 521
Calculation steps:
[( 521 - 875 ) ÷ 875] x 100 = -40.46%
Formula
Percentage change = [(521 - 875) / 875] x 100
Subtract the new number by the original number
521 - 875 = -354
-354 ÷ 875 = -0.4045714285714286
-0.4045714285714286 x 100 = -40.46%