-78.89% is the change from 469 to 99
Calculation steps:
[( 99 - 469 ) ÷ 469] x 100 = -78.89%
Formula
Percentage change = [(99 - 469) / 469] x 100
Subtract the new number by the original number
99 - 469 = -370
-370 ÷ 469 = -0.7889125799573561
-0.7889125799573561 x 100 = -78.89%