-59.85% is the change from 391 to 157
Calculation steps:
[( 157 - 391 ) ÷ 391] x 100 = -59.85%
Formula
Percentage change = [(157 - 391) / 391] x 100
Subtract the new number by the original number
157 - 391 = -234
-234 ÷ 391 = -0.59846547314578
-0.59846547314578 x 100 = -59.85%