-40.9% is the change from 824 to 487
Calculation steps:
[( 487 - 824 ) ÷ 824] x 100 = -40.9%
Formula
Percentage change = [(487 - 824) / 824] x 100
Subtract the new number by the original number
487 - 824 = -337
-337 ÷ 824 = -0.40898058252427183
-0.40898058252427183 x 100 = -40.9%