-66.8% is the change from 503 to 167
Calculation steps:
[( 167 - 503 ) ÷ 503] x 100 = -66.8%
Formula
Percentage change = [(167 - 503) / 503] x 100
Subtract the new number by the original number
167 - 503 = -336
-336 ÷ 503 = -0.6679920477137177
-0.6679920477137177 x 100 = -66.8%