-70.16% is the change from 506 to 151
Calculation steps:
[( 151 - 506 ) ÷ 506] x 100 = -70.16%
Formula
Percentage change = [(151 - 506) / 506] x 100
Subtract the new number by the original number
151 - 506 = -355
-355 ÷ 506 = -0.7015810276679841
-0.7015810276679841 x 100 = -70.16%