-42.8% is the change from 521 to 298
Calculation steps:
[( 298 - 521 ) ÷ 521] x 100 = -42.8%
Formula
Percentage change = [(298 - 521) / 521] x 100
Subtract the new number by the original number
298 - 521 = -223
-223 ÷ 521 = -0.42802303262955854
-0.42802303262955854 x 100 = -42.8%