-87.08% is the change from 503 to 65
Calculation steps:
[( 65 - 503 ) ÷ 503] x 100 = -87.08%
Formula
Percentage change = [(65 - 503) / 503] x 100
Subtract the new number by the original number
65 - 503 = -438
-438 ÷ 503 = -0.8707753479125249
-0.8707753479125249 x 100 = -87.08%