-64.68% is the change from 521 to 184
Calculation steps:
[( 184 - 521 ) ÷ 521] x 100 = -64.68%
Formula
Percentage change = [(184 - 521) / 521] x 100
Subtract the new number by the original number
184 - 521 = -337
-337 ÷ 521 = -0.6468330134357005
-0.6468330134357005 x 100 = -64.68%