-69.79% is the change from 513 to 155
Calculation steps:
[( 155 - 513 ) ÷ 513] x 100 = -69.79%
Formula
Percentage change = [(155 - 513) / 513] x 100
Subtract the new number by the original number
155 - 513 = -358
-358 ÷ 513 = -0.6978557504873294
-0.6978557504873294 x 100 = -69.79%