-88.98% is the change from 581 to 64
Calculation steps:
[( 64 - 581 ) ÷ 581] x 100 = -88.98%
Formula
Percentage change = [(64 - 581) / 581] x 100
Subtract the new number by the original number
64 - 581 = -517
-517 ÷ 581 = -0.8898450946643718
-0.8898450946643718 x 100 = -88.98%