-1.6% is the change from 938 to 923
Calculation steps:
[( 923 - 938 ) ÷ 938] x 100 = -1.6%
Formula
Percentage change = [(923 - 938) / 938] x 100
Subtract the new number by the original number
923 - 938 = -15
-15 ÷ 938 = -0.015991471215351813
-0.015991471215351813 x 100 = -1.6%