3.45% is the change from 957 to 990
Calculation steps:
[( 990 - 957 ) ÷ 957] x 100 = 3.45%
Formula
Percentage change = [(990 - 957) / 957] x 100
Subtract the new number by the original number
990 - 957 = 33
33 ÷ 957 = 0.034482758620689655
0.034482758620689655 x 100 = 3.45%