-55.8% is the change from 966 to 427
Calculation steps:
[( 427 - 966 ) ÷ 966] x 100 = -55.8%
Formula
Percentage change = [(427 - 966) / 966] x 100
Subtract the new number by the original number
427 - 966 = -539
-539 ÷ 966 = -0.5579710144927537
-0.5579710144927537 x 100 = -55.8%