-61.04% is the change from 539 to 210
Calculation steps:
[( 210 - 539 ) ÷ 539] x 100 = -61.04%
Formula
Percentage change = [(210 - 539) / 539] x 100
Subtract the new number by the original number
210 - 539 = -329
-329 ÷ 539 = -0.6103896103896104
-0.6103896103896104 x 100 = -61.04%