-73.49% is the change from 513 to 136
Calculation steps:
[( 136 - 513 ) ÷ 513] x 100 = -73.49%
Formula
Percentage change = [(136 - 513) / 513] x 100
Subtract the new number by the original number
136 - 513 = -377
-377 ÷ 513 = -0.7348927875243665
-0.7348927875243665 x 100 = -73.49%