-36.1% is the change from 820 to 524
Calculation steps:
[( 524 - 820 ) ÷ 820] x 100 = -36.1%
Formula
Percentage change = [(524 - 820) / 820] x 100
Subtract the new number by the original number
524 - 820 = -296
-296 ÷ 820 = -0.36097560975609755
-0.36097560975609755 x 100 = -36.1%