-64.49% is the change from 963 to 342
Calculation steps:
[( 342 - 963 ) ÷ 963] x 100 = -64.49%
Formula
Percentage change = [(342 - 963) / 963] x 100
Subtract the new number by the original number
342 - 963 = -621
-621 ÷ 963 = -0.6448598130841121
-0.6448598130841121 x 100 = -64.49%