-87.62% is the change from 816 to 101
Calculation steps:
[( 101 - 816 ) ÷ 816] x 100 = -87.62%
Formula
Percentage change = [(101 - 816) / 816] x 100
Subtract the new number by the original number
101 - 816 = -715
-715 ÷ 816 = -0.8762254901960784
-0.8762254901960784 x 100 = -87.62%