-75.34% is the change from 515 to 127
Calculation steps:
[( 127 - 515 ) ÷ 515] x 100 = -75.34%
Formula
Percentage change = [(127 - 515) / 515] x 100
Subtract the new number by the original number
127 - 515 = -388
-388 ÷ 515 = -0.7533980582524272
-0.7533980582524272 x 100 = -75.34%