-57% is the change from 600 to 258
Calculation steps:
[( 258 - 600 ) ÷ 600] x 100 = -57%
Formula
Percentage change = [(258 - 600) / 600] x 100
Subtract the new number by the original number
258 - 600 = -342
-342 ÷ 600 = -0.57
-0.57 x 100 = -57%
Example