-56.07% is the change from 988 to 434
Calculation steps:
[( 434 - 988 ) ÷ 988] x 100 = -56.07%
Formula
Percentage change = [(434 - 988) / 988] x 100
Subtract the new number by the original number
434 - 988 = -554
-554 ÷ 988 = -0.5607287449392713
-0.5607287449392713 x 100 = -56.07%