-75.57% is the change from 307 to 75
Calculation steps:
[( 75 - 307 ) ÷ 307] x 100 = -75.57%
Formula
Percentage change = [(75 - 307) / 307] x 100
Subtract the new number by the original number
75 - 307 = -232
-232 ÷ 307 = -0.755700325732899
-0.755700325732899 x 100 = -75.57%