-4.6% is the change from 391 to 373
Calculation steps:
[( 373 - 391 ) ÷ 391] x 100 = -4.6%
Formula
Percentage change = [(373 - 391) / 391] x 100
Subtract the new number by the original number
373 - 391 = -18
-18 ÷ 391 = -0.04603580562659847
-0.04603580562659847 x 100 = -4.6%