-15.42% is the change from 616 to 521
Calculation steps:
[( 521 - 616 ) ÷ 616] x 100 = -15.42%
Formula
Percentage change = [(521 - 616) / 616] x 100
Subtract the new number by the original number
521 - 616 = -95
-95 ÷ 616 = -0.15422077922077923
-0.15422077922077923 x 100 = -15.42%