-60.99% is the change from 505 to 197
Calculation steps:
[( 197 - 505 ) ÷ 505] x 100 = -60.99%
Formula
Percentage change = [(197 - 505) / 505] x 100
Subtract the new number by the original number
197 - 505 = -308
-308 ÷ 505 = -0.6099009900990099
-0.6099009900990099 x 100 = -60.99%