-3.26% is the change from 952 to 921
Calculation steps:
[( 921 - 952 ) ÷ 952] x 100 = -3.26%
Formula
Percentage change = [(921 - 952) / 952] x 100
Subtract the new number by the original number
921 - 952 = -31
-31 ÷ 952 = -0.032563025210084036
-0.032563025210084036 x 100 = -3.26%