-73.03% is the change from 508 to 137
Calculation steps:
[( 137 - 508 ) ÷ 508] x 100 = -73.03%
Formula
Percentage change = [(137 - 508) / 508] x 100
Subtract the new number by the original number
137 - 508 = -371
-371 ÷ 508 = -0.7303149606299213
-0.7303149606299213 x 100 = -73.03%