-23.51% is the change from 655 to 501
Calculation steps:
[( 501 - 655 ) ÷ 655] x 100 = -23.51%
Formula
Percentage change = [(501 - 655) / 655] x 100
Subtract the new number by the original number
501 - 655 = -154
-154 ÷ 655 = -0.23511450381679388
-0.23511450381679388 x 100 = -23.51%