-47.25% is the change from 510 to 269
Calculation steps:
[( 269 - 510 ) ÷ 510] x 100 = -47.25%
Formula
Percentage change = [(269 - 510) / 510] x 100
Subtract the new number by the original number
269 - 510 = -241
-241 ÷ 510 = -0.4725490196078431
-0.4725490196078431 x 100 = -47.25%