-79.77% is the change from 430 to 87
Calculation steps:
[( 87 - 430 ) ÷ 430] x 100 = -79.77%
Formula
Percentage change = [(87 - 430) / 430] x 100
Subtract the new number by the original number
87 - 430 = -343
-343 ÷ 430 = -0.7976744186046512
-0.7976744186046512 x 100 = -79.77%