-68.62% is the change from 513 to 161
Calculation steps:
[( 161 - 513 ) ÷ 513] x 100 = -68.62%
Formula
Percentage change = [(161 - 513) / 513] x 100
Subtract the new number by the original number
161 - 513 = -352
-352 ÷ 513 = -0.6861598440545809
-0.6861598440545809 x 100 = -68.62%