-67.56% is the change from 521 to 169
Calculation steps:
[( 169 - 521 ) ÷ 521] x 100 = -67.56%
Formula
Percentage change = [(169 - 521) / 521] x 100
Subtract the new number by the original number
169 - 521 = -352
-352 ÷ 521 = -0.6756238003838771
-0.6756238003838771 x 100 = -67.56%