-64.6% is the change from 966 to 342
Calculation steps:
[( 342 - 966 ) ÷ 966] x 100 = -64.6%
Formula
Percentage change = [(342 - 966) / 966] x 100
Subtract the new number by the original number
342 - 966 = -624
-624 ÷ 966 = -0.6459627329192547
-0.6459627329192547 x 100 = -64.6%