-78.18% is the change from 307 to 67
Calculation steps:
[( 67 - 307 ) ÷ 307] x 100 = -78.18%
Formula
Percentage change = [(67 - 307) / 307] x 100
Subtract the new number by the original number
67 - 307 = -240
-240 ÷ 307 = -0.7817589576547231
-0.7817589576547231 x 100 = -78.18%