-59.01% is the change from 505 to 207
Calculation steps:
[( 207 - 505 ) ÷ 505] x 100 = -59.01%
Formula
Percentage change = [(207 - 505) / 505] x 100
Subtract the new number by the original number
207 - 505 = -298
-298 ÷ 505 = -0.5900990099009901
-0.5900990099009901 x 100 = -59.01%