-44.88% is the change from 820 to 452
Calculation steps:
[( 452 - 820 ) ÷ 820] x 100 = -44.88%
Formula
Percentage change = [(452 - 820) / 820] x 100
Subtract the new number by the original number
452 - 820 = -368
-368 ÷ 820 = -0.44878048780487806
-0.44878048780487806 x 100 = -44.88%