-3.76% is the change from 957 to 921
Calculation steps:
[( 921 - 957 ) ÷ 957] x 100 = -3.76%
Formula
Percentage change = [(921 - 957) / 957] x 100
Subtract the new number by the original number
921 - 957 = -36
-36 ÷ 957 = -0.03761755485893417
-0.03761755485893417 x 100 = -3.76%