-73.83% is the change from 512 to 134
Calculation steps:
[( 134 - 512 ) ÷ 512] x 100 = -73.83%
Formula
Percentage change = [(134 - 512) / 512] x 100
Subtract the new number by the original number
134 - 512 = -378
-378 ÷ 512 = -0.73828125
-0.73828125 x 100 = -73.83%