-70.08% is the change from 391 to 117
Calculation steps:
[( 117 - 391 ) ÷ 391] x 100 = -70.08%
Formula
Percentage change = [(117 - 391) / 391] x 100
Subtract the new number by the original number
117 - 391 = -274
-274 ÷ 391 = -0.7007672634271099
-0.7007672634271099 x 100 = -70.08%