-55.69% is the change from 966 to 428
Calculation steps:
[( 428 - 966 ) ÷ 966] x 100 = -55.69%
Formula
Percentage change = [(428 - 966) / 966] x 100
Subtract the new number by the original number
428 - 966 = -538
-538 ÷ 966 = -0.556935817805383
-0.556935817805383 x 100 = -55.69%