-87.6% is the change from 363 to 45
Calculation steps:
[( 45 - 363 ) ÷ 363] x 100 = -87.6%
Formula
Percentage change = [(45 - 363) / 363] x 100
Subtract the new number by the original number
45 - 363 = -318
-318 ÷ 363 = -0.8760330578512396
-0.8760330578512396 x 100 = -87.6%
Example