-38.74% is the change from 524 to 321
Calculation steps:
[( 321 - 524 ) ÷ 524] x 100 = -38.74%
Formula
Percentage change = [(321 - 524) / 524] x 100
Subtract the new number by the original number
321 - 524 = -203
-203 ÷ 524 = -0.38740458015267176
-0.38740458015267176 x 100 = -38.74%