-55.69% is the change from 510 to 226
Calculation steps:
[( 226 - 510 ) ÷ 510] x 100 = -55.69%
Formula
Percentage change = [(226 - 510) / 510] x 100
Subtract the new number by the original number
226 - 510 = -284
-284 ÷ 510 = -0.5568627450980392
-0.5568627450980392 x 100 = -55.69%