-85.24% is the change from 515 to 76
Calculation steps:
[( 76 - 515 ) ÷ 515] x 100 = -85.24%
Formula
Percentage change = [(76 - 515) / 515] x 100
Subtract the new number by the original number
76 - 515 = -439
-439 ÷ 515 = -0.8524271844660194
-0.8524271844660194 x 100 = -85.24%