-57.21% is the change from 603 to 258
Calculation steps:
[( 258 - 603 ) ÷ 603] x 100 = -57.21%
Formula
Percentage change = [(258 - 603) / 603] x 100
Subtract the new number by the original number
258 - 603 = -345
-345 ÷ 603 = -0.572139303482587
-0.572139303482587 x 100 = -57.21%