-3.3% is the change from 938 to 907
Calculation steps:
[( 907 - 938 ) ÷ 938] x 100 = -3.3%
Formula
Percentage change = [(907 - 938) / 938] x 100
Subtract the new number by the original number
907 - 938 = -31
-31 ÷ 938 = -0.03304904051172708
-0.03304904051172708 x 100 = -3.3%