-51.75% is the change from 570 to 275
Calculation steps:
[( 275 - 570 ) ÷ 570] x 100 = -51.75%
Formula
Percentage change = [(275 - 570) / 570] x 100
Subtract the new number by the original number
275 - 570 = -295
-295 ÷ 570 = -0.5175438596491229
-0.5175438596491229 x 100 = -51.75%