-76.92% is the change from 429 to 99
Calculation steps:
[( 99 - 429 ) ÷ 429] x 100 = -76.92%
Formula
Percentage change = [(99 - 429) / 429] x 100
Subtract the new number by the original number
99 - 429 = -330
-330 ÷ 429 = -0.7692307692307693
-0.7692307692307693 x 100 = -76.92%