-62.88% is the change from 520 to 193
Calculation steps:
[( 193 - 520 ) ÷ 520] x 100 = -62.88%
Formula
Percentage change = [(193 - 520) / 520] x 100
Subtract the new number by the original number
193 - 520 = -327
-327 ÷ 520 = -0.6288461538461538
-0.6288461538461538 x 100 = -62.88%