-24.49% is the change from 690 to 521
Calculation steps:
[( 521 - 690 ) ÷ 690] x 100 = -24.49%
Formula
Percentage change = [(521 - 690) / 690] x 100
Subtract the new number by the original number
521 - 690 = -169
-169 ÷ 690 = -0.24492753623188407
-0.24492753623188407 x 100 = -24.49%