-77.61% is the change from 603 to 135
Calculation steps:
[( 135 - 603 ) ÷ 603] x 100 = -77.61%
Formula
Percentage change = [(135 - 603) / 603] x 100
Subtract the new number by the original number
135 - 603 = -468
-468 ÷ 603 = -0.7761194029850746
-0.7761194029850746 x 100 = -77.61%