-79.42% is the change from 481 to 99
Calculation steps:
[( 99 - 481 ) ÷ 481] x 100 = -79.42%
Formula
Percentage change = [(99 - 481) / 481] x 100
Subtract the new number by the original number
99 - 481 = -382
-382 ÷ 481 = -0.7941787941787942
-0.7941787941787942 x 100 = -79.42%