-21.2% is the change from 665 to 524
Calculation steps:
[( 524 - 665 ) ÷ 665] x 100 = -21.2%
Formula
Percentage change = [(524 - 665) / 665] x 100
Subtract the new number by the original number
524 - 665 = -141
-141 ÷ 665 = -0.21203007518796993
-0.21203007518796993 x 100 = -21.2%