-56.64% is the change from 987 to 428
Calculation steps:
[( 428 - 987 ) ÷ 987] x 100 = -56.64%
Formula
Percentage change = [(428 - 987) / 987] x 100
Subtract the new number by the original number
428 - 987 = -559
-559 ÷ 987 = -0.5663627152988855
-0.5663627152988855 x 100 = -56.64%