-62.52% is the change from 515 to 193
Calculation steps:
[( 193 - 515 ) ÷ 515] x 100 = -62.52%
Formula
Percentage change = [(193 - 515) / 515] x 100
Subtract the new number by the original number
193 - 515 = -322
-322 ÷ 515 = -0.625242718446602
-0.625242718446602 x 100 = -62.52%