-37.56% is the change from 402 to 251
Calculation steps:
[( 251 - 402 ) ÷ 402] x 100 = -37.56%
Formula
Percentage change = [(251 - 402) / 402] x 100
Subtract the new number by the original number
251 - 402 = -151
-151 ÷ 402 = -0.3756218905472637
-0.3756218905472637 x 100 = -37.56%