-59.03% is the change from 515 to 211
Calculation steps:
[( 211 - 515 ) ÷ 515] x 100 = -59.03%
Formula
Percentage change = [(211 - 515) / 515] x 100
Subtract the new number by the original number
211 - 515 = -304
-304 ÷ 515 = -0.5902912621359223
-0.5902912621359223 x 100 = -59.03%