-43.97% is the change from 912 to 511
Calculation steps:
[( 511 - 912 ) ÷ 912] x 100 = -43.97%
Formula
Percentage change = [(511 - 912) / 912] x 100
Subtract the new number by the original number
511 - 912 = -401
-401 ÷ 912 = -0.43969298245614036
-0.43969298245614036 x 100 = -43.97%