-45.52% is the change from 391 to 213
Calculation steps:
[( 213 - 391 ) ÷ 391] x 100 = -45.52%
Formula
Percentage change = [(213 - 391) / 391] x 100
Subtract the new number by the original number
213 - 391 = -178
-178 ÷ 391 = -0.45524296675191817
-0.45524296675191817 x 100 = -45.52%