-45.76% is the change from 507 to 275
Calculation steps:
[( 275 - 507 ) ÷ 507] x 100 = -45.76%
Formula
Percentage change = [(275 - 507) / 507] x 100
Subtract the new number by the original number
275 - 507 = -232
-232 ÷ 507 = -0.45759368836291914
-0.45759368836291914 x 100 = -45.76%