-64.74% is the change from 502 to 177
Calculation steps:
[( 177 - 502 ) ÷ 502] x 100 = -64.74%
Formula
Percentage change = [(177 - 502) / 502] x 100
Subtract the new number by the original number
177 - 502 = -325
-325 ÷ 502 = -0.647410358565737
-0.647410358565737 x 100 = -64.74%