-78.49% is the change from 465 to 100
Calculation steps:
[( 100 - 465 ) ÷ 465] x 100 = -78.49%
Formula
Percentage change = [(100 - 465) / 465] x 100
Subtract the new number by the original number
100 - 465 = -365
-365 ÷ 465 = -0.7849462365591398
-0.7849462365591398 x 100 = -78.49%