-77.34% is the change from 512 to 116
Calculation steps:
[( 116 - 512 ) ÷ 512] x 100 = -77.34%
Formula
Percentage change = [(116 - 512) / 512] x 100
Subtract the new number by the original number
116 - 512 = -396
-396 ÷ 512 = -0.7734375
-0.7734375 x 100 = -77.34%