-3.37% is the change from 921 to 890
Calculation steps:
[( 890 - 921 ) ÷ 921] x 100 = -3.37%
Formula
Percentage change = [(890 - 921) / 921] x 100
Subtract the new number by the original number
890 - 921 = -31
-31 ÷ 921 = -0.033659066232356136
-0.033659066232356136 x 100 = -3.37%