-23.37% is the change from 505 to 387
Calculation steps:
[( 387 - 505 ) ÷ 505] x 100 = -23.37%
Formula
Percentage change = [(387 - 505) / 505] x 100
Subtract the new number by the original number
387 - 505 = -118
-118 ÷ 505 = -0.23366336633663368
-0.23366336633663368 x 100 = -23.37%