-13.24% is the change from 521 to 452
Calculation steps:
[( 452 - 521 ) ÷ 521] x 100 = -13.24%
Formula
Percentage change = [(452 - 521) / 521] x 100
Subtract the new number by the original number
452 - 521 = -69
-69 ÷ 521 = -0.1324376199616123
-0.1324376199616123 x 100 = -13.24%