-63.54% is the change from 820 to 299
Calculation steps:
[( 299 - 820 ) ÷ 820] x 100 = -63.54%
Formula
Percentage change = [(299 - 820) / 820] x 100
Subtract the new number by the original number
299 - 820 = -521
-521 ÷ 820 = -0.6353658536585366
-0.6353658536585366 x 100 = -63.54%