-37.81% is the change from 402 to 250
Calculation steps:
[( 250 - 402 ) ÷ 402] x 100 = -37.81%
Formula
Percentage change = [(250 - 402) / 402] x 100
Subtract the new number by the original number
250 - 402 = -152
-152 ÷ 402 = -0.3781094527363184
-0.3781094527363184 x 100 = -37.81%