-60.2% is the change from 505 to 201
Calculation steps:
[( 201 - 505 ) ÷ 505] x 100 = -60.2%
Formula
Percentage change = [(201 - 505) / 505] x 100
Subtract the new number by the original number
201 - 505 = -304
-304 ÷ 505 = -0.601980198019802
-0.601980198019802 x 100 = -60.2%