-4.46% is the change from 964 to 921
Calculation steps:
[( 921 - 964 ) ÷ 964] x 100 = -4.46%
Formula
Percentage change = [(921 - 964) / 964] x 100
Subtract the new number by the original number
921 - 964 = -43
-43 ÷ 964 = -0.044605809128630707
-0.044605809128630707 x 100 = -4.46%