-25.44% is the change from 507 to 378
Calculation steps:
[( 378 - 507 ) ÷ 507] x 100 = -25.44%
Formula
Percentage change = [(378 - 507) / 507] x 100
Subtract the new number by the original number
378 - 507 = -129
-129 ÷ 507 = -0.25443786982248523
-0.25443786982248523 x 100 = -25.44%