-78.88% is the change from 786 to 166
Calculation steps:
[( 166 - 786 ) ÷ 786] x 100 = -78.88%
Formula
Percentage change = [(166 - 786) / 786] x 100
Subtract the new number by the original number
166 - 786 = -620
-620 ÷ 786 = -0.7888040712468194
-0.7888040712468194 x 100 = -78.88%