-72.92% is the change from 506 to 137
Calculation steps:
[( 137 - 506 ) ÷ 506] x 100 = -72.92%
Formula
Percentage change = [(137 - 506) / 506] x 100
Subtract the new number by the original number
137 - 506 = -369
-369 ÷ 506 = -0.7292490118577075
-0.7292490118577075 x 100 = -72.92%