-94.49% is the change from 817 to 45
Calculation steps:
[( 45 - 817 ) ÷ 817] x 100 = -94.49%
Formula
Percentage change = [(45 - 817) / 817] x 100
Subtract the new number by the original number
45 - 817 = -772
-772 ÷ 817 = -0.944920440636475
-0.944920440636475 x 100 = -94.49%