-22.93% is the change from 663 to 511
Calculation steps:
[( 511 - 663 ) ÷ 663] x 100 = -22.93%
Formula
Percentage change = [(511 - 663) / 663] x 100
Subtract the new number by the original number
511 - 663 = -152
-152 ÷ 663 = -0.22926093514328807
-0.22926093514328807 x 100 = -22.93%