-36.17% is the change from 611 to 390
Calculation steps:
[( 390 - 611 ) ÷ 611] x 100 = -36.17%
Formula
Percentage change = [(390 - 611) / 611] x 100
Subtract the new number by the original number
390 - 611 = -221
-221 ÷ 611 = -0.3617021276595745
-0.3617021276595745 x 100 = -36.17%