-91.6% is the change from 786 to 66
Calculation steps:
[( 66 - 786 ) ÷ 786] x 100 = -91.6%
Formula
Percentage change = [(66 - 786) / 786] x 100
Subtract the new number by the original number
66 - 786 = -720
-720 ÷ 786 = -0.916030534351145
-0.916030534351145 x 100 = -91.6%