-91.12% is the change from 845 to 75
Calculation steps:
[( 75 - 845 ) ÷ 845] x 100 = -91.12%
Formula
Percentage change = [(75 - 845) / 845] x 100
Subtract the new number by the original number
75 - 845 = -770
-770 ÷ 845 = -0.9112426035502958
-0.9112426035502958 x 100 = -91.12%