-5.37% is the change from 391 to 370
Calculation steps:
[( 370 - 391 ) ÷ 391] x 100 = -5.37%
Formula
Percentage change = [(370 - 391) / 391] x 100
Subtract the new number by the original number
370 - 391 = -21
-21 ÷ 391 = -0.05370843989769821
-0.05370843989769821 x 100 = -5.37%