-58.83% is the change from 515 to 212
Calculation steps:
[( 212 - 515 ) ÷ 515] x 100 = -58.83%
Formula
Percentage change = [(212 - 515) / 515] x 100
Subtract the new number by the original number
212 - 515 = -303
-303 ÷ 515 = -0.5883495145631068
-0.5883495145631068 x 100 = -58.83%