-20.97% is the change from 663 to 524
Calculation steps:
[( 524 - 663 ) ÷ 663] x 100 = -20.97%
Formula
Percentage change = [(524 - 663) / 663] x 100
Subtract the new number by the original number
524 - 663 = -139
-139 ÷ 663 = -0.2096530920060332
-0.2096530920060332 x 100 = -20.97%