-73.19% is the change from 511 to 137
Calculation steps:
[( 137 - 511 ) ÷ 511] x 100 = -73.19%
Formula
Percentage change = [(137 - 511) / 511] x 100
Subtract the new number by the original number
137 - 511 = -374
-374 ÷ 511 = -0.7318982387475538
-0.7318982387475538 x 100 = -73.19%