-89.23% is the change from 594 to 64
Calculation steps:
[( 64 - 594 ) ÷ 594] x 100 = -89.23%
Formula
Percentage change = [(64 - 594) / 594] x 100
Subtract the new number by the original number
64 - 594 = -530
-530 ÷ 594 = -0.8922558922558923
-0.8922558922558923 x 100 = -89.23%