-99.63% is the change from 539 to 2
Calculation steps:
[( 2 - 539 ) ÷ 539] x 100 = -99.63%
Formula
Percentage change = [(2 - 539) / 539] x 100
Subtract the new number by the original number
2 - 539 = -537
-537 ÷ 539 = -0.9962894248608535
-0.9962894248608535 x 100 = -99.63%