-16.61% is the change from 301 to 251
Calculation steps:
[( 251 - 301 ) ÷ 301] x 100 = -16.61%
Formula
Percentage change = [(251 - 301) / 301] x 100
Subtract the new number by the original number
251 - 301 = -50
-50 ÷ 301 = -0.16611295681063123
-0.16611295681063123 x 100 = -16.61%