-31.18% is the change from 821 to 565
Calculation steps:
[( 565 - 821 ) ÷ 821] x 100 = -31.18%
Formula
Percentage change = [(565 - 821) / 821] x 100
Subtract the new number by the original number
565 - 821 = -256
-256 ÷ 821 = -0.3118148599269184
-0.3118148599269184 x 100 = -31.18%