-26.1% is the change from 705 to 521
Calculation steps:
[( 521 - 705 ) ÷ 705] x 100 = -26.1%
Formula
Percentage change = [(521 - 705) / 705] x 100
Subtract the new number by the original number
521 - 705 = -184
-184 ÷ 705 = -0.26099290780141843
-0.26099290780141843 x 100 = -26.1%