-21.48% is the change from 768 to 603
Calculation steps:
[( 603 - 768 ) ÷ 768] x 100 = -21.48%
Formula
Percentage change = [(603 - 768) / 768] x 100
Subtract the new number by the original number
603 - 768 = -165
-165 ÷ 768 = -0.21484375
-0.21484375 x 100 = -21.48%