-4.36% is the change from 963 to 921
Calculation steps:
[( 921 - 963 ) ÷ 963] x 100 = -4.36%
Formula
Percentage change = [(921 - 963) / 963] x 100
Subtract the new number by the original number
921 - 963 = -42
-42 ÷ 963 = -0.04361370716510903
-0.04361370716510903 x 100 = -4.36%