-82.48% is the change from 565 to 99
Calculation steps:
[( 99 - 565 ) ÷ 565] x 100 = -82.48%
Formula
Percentage change = [(99 - 565) / 565] x 100
Subtract the new number by the original number
99 - 565 = -466
-466 ÷ 565 = -0.8247787610619469
-0.8247787610619469 x 100 = -82.48%