-48.52% is the change from 507 to 261
Calculation steps:
[( 261 - 507 ) ÷ 507] x 100 = -48.52%
Formula
Percentage change = [(261 - 507) / 507] x 100
Subtract the new number by the original number
261 - 507 = -246
-246 ÷ 507 = -0.48520710059171596
-0.48520710059171596 x 100 = -48.52%