-23.79% is the change from 206 to 157
Calculation steps:
[( 157 - 206 ) ÷ 206] x 100 = -23.79%
Formula
Percentage change = [(157 - 206) / 206] x 100
Subtract the new number by the original number
157 - 206 = -49
-49 ÷ 206 = -0.23786407766990292
-0.23786407766990292 x 100 = -23.79%