-45.36% is the change from 183 to 100
Calculation steps:
[( 100 - 183 ) ÷ 183] x 100 = -45.36%
Formula
Percentage change = [(100 - 183) / 183] x 100
Subtract the new number by the original number
100 - 183 = -83
-83 ÷ 183 = -0.453551912568306
-0.453551912568306 x 100 = -45.36%