-42.1% is the change from 525 to 304
Calculation steps:
[( 304 - 525 ) ÷ 525] x 100 = -42.1%
Formula
Percentage change = [(304 - 525) / 525] x 100
Subtract the new number by the original number
304 - 525 = -221
-221 ÷ 525 = -0.42095238095238097
-0.42095238095238097 x 100 = -42.1%