-59.81% is the change from 515 to 207
Calculation steps:
[( 207 - 515 ) ÷ 515] x 100 = -59.81%
Formula
Percentage change = [(207 - 515) / 515] x 100
Subtract the new number by the original number
207 - 515 = -308
-308 ÷ 515 = -0.5980582524271845
-0.5980582524271845 x 100 = -59.81%