-78.76% is the change from 306 to 65
Calculation steps:
[( 65 - 306 ) ÷ 306] x 100 = -78.76%
Formula
Percentage change = [(65 - 306) / 306] x 100
Subtract the new number by the original number
65 - 306 = -241
-241 ÷ 306 = -0.7875816993464052
-0.7875816993464052 x 100 = -78.76%