-70.06% is the change from 511 to 153
Calculation steps:
[( 153 - 511 ) ÷ 511] x 100 = -70.06%
Formula
Percentage change = [(153 - 511) / 511] x 100
Subtract the new number by the original number
153 - 511 = -358
-358 ÷ 511 = -0.700587084148728
-0.700587084148728 x 100 = -70.06%