-36.59% is the change from 511 to 324
Calculation steps:
[( 324 - 511 ) ÷ 511] x 100 = -36.59%
Formula
Percentage change = [(324 - 511) / 511] x 100
Subtract the new number by the original number
324 - 511 = -187
-187 ÷ 511 = -0.3659491193737769
-0.3659491193737769 x 100 = -36.59%