-64.42% is the change from 964 to 343
Calculation steps:
[( 343 - 964 ) ÷ 964] x 100 = -64.42%
Formula
Percentage change = [(343 - 964) / 964] x 100
Subtract the new number by the original number
343 - 964 = -621
-621 ÷ 964 = -0.6441908713692946
-0.6441908713692946 x 100 = -64.42%