-26.62% is the change from 710 to 521
Calculation steps:
[( 521 - 710 ) ÷ 710] x 100 = -26.62%
Formula
Percentage change = [(521 - 710) / 710] x 100
Subtract the new number by the original number
521 - 710 = -189
-189 ÷ 710 = -0.2661971830985915
-0.2661971830985915 x 100 = -26.62%