-58.55% is the change from 509 to 211
Calculation steps:
[( 211 - 509 ) ÷ 509] x 100 = -58.55%
Formula
Percentage change = [(211 - 509) / 509] x 100
Subtract the new number by the original number
211 - 509 = -298
-298 ÷ 509 = -0.5854616895874263
-0.5854616895874263 x 100 = -58.55%