-62.43% is the change from 511 to 192
Calculation steps:
[( 192 - 511 ) ÷ 511] x 100 = -62.43%
Formula
Percentage change = [(192 - 511) / 511] x 100
Subtract the new number by the original number
192 - 511 = -319
-319 ÷ 511 = -0.62426614481409
-0.62426614481409 x 100 = -62.43%