-48.98% is the change from 539 to 275
Calculation steps:
[( 275 - 539 ) ÷ 539] x 100 = -48.98%
Formula
Percentage change = [(275 - 539) / 539] x 100
Subtract the new number by the original number
275 - 539 = -264
-264 ÷ 539 = -0.4897959183673469
-0.4897959183673469 x 100 = -48.98%