-60.27% is the change from 511 to 203
Calculation steps:
[( 203 - 511 ) ÷ 511] x 100 = -60.27%
Formula
Percentage change = [(203 - 511) / 511] x 100
Subtract the new number by the original number
203 - 511 = -308
-308 ÷ 511 = -0.6027397260273972
-0.6027397260273972 x 100 = -60.27%