-58.38% is the change from 507 to 211
Calculation steps:
[( 211 - 507 ) ÷ 507] x 100 = -58.38%
Formula
Percentage change = [(211 - 507) / 507] x 100
Subtract the new number by the original number
211 - 507 = -296
-296 ÷ 507 = -0.5838264299802761
-0.5838264299802761 x 100 = -58.38%