-64.73% is the change from 964 to 340
Calculation steps:
[( 340 - 964 ) ÷ 964] x 100 = -64.73%
Formula
Percentage change = [(340 - 964) / 964] x 100
Subtract the new number by the original number
340 - 964 = -624
-624 ÷ 964 = -0.6473029045643154
-0.6473029045643154 x 100 = -64.73%