-58.3% is the change from 506 to 211
Calculation steps:
[( 211 - 506 ) ÷ 506] x 100 = -58.3%
Formula
Percentage change = [(211 - 506) / 506] x 100
Subtract the new number by the original number
211 - 506 = -295
-295 ÷ 506 = -0.5830039525691699
-0.5830039525691699 x 100 = -58.3%