-92.77% is the change from 913 to 66
Calculation steps:
[( 66 - 913 ) ÷ 913] x 100 = -92.77%
Formula
Percentage change = [(66 - 913) / 913] x 100
Subtract the new number by the original number
66 - 913 = -847
-847 ÷ 913 = -0.927710843373494
-0.927710843373494 x 100 = -92.77%