-3.75% is the change from 507 to 488
Calculation steps:
[( 488 - 507 ) ÷ 507] x 100 = -3.75%
Formula
Percentage change = [(488 - 507) / 507] x 100
Subtract the new number by the original number
488 - 507 = -19
-19 ÷ 507 = -0.03747534516765286
-0.03747534516765286 x 100 = -3.75%