-77.09% is the change from 585 to 134
Calculation steps:
[( 134 - 585 ) ÷ 585] x 100 = -77.09%
Formula
Percentage change = [(134 - 585) / 585] x 100
Subtract the new number by the original number
134 - 585 = -451
-451 ÷ 585 = -0.770940170940171
-0.770940170940171 x 100 = -77.09%