-60.65% is the change from 399 to 157
Calculation steps:
[( 157 - 399 ) ÷ 399] x 100 = -60.65%
Formula
Percentage change = [(157 - 399) / 399] x 100
Subtract the new number by the original number
157 - 399 = -242
-242 ÷ 399 = -0.606516290726817
-0.606516290726817 x 100 = -60.65%