-54.36% is the change from 344 to 157
Calculation steps:
[( 157 - 344 ) ÷ 344] x 100 = -54.36%
Formula
Percentage change = [(157 - 344) / 344] x 100
Subtract the new number by the original number
157 - 344 = -187
-187 ÷ 344 = -0.5436046511627907
-0.5436046511627907 x 100 = -54.36%