-59.63% is the change from 966 to 390
Calculation steps:
[( 390 - 966 ) ÷ 966] x 100 = -59.63%
Formula
Percentage change = [(390 - 966) / 966] x 100
Subtract the new number by the original number
390 - 966 = -576
-576 ÷ 966 = -0.5962732919254659
-0.5962732919254659 x 100 = -59.63%