-79.95% is the change from 434 to 87
Calculation steps:
[( 87 - 434 ) ÷ 434] x 100 = -79.95%
Formula
Percentage change = [(87 - 434) / 434] x 100
Subtract the new number by the original number
87 - 434 = -347
-347 ÷ 434 = -0.7995391705069125
-0.7995391705069125 x 100 = -79.95%