-72.37% is the change from 778 to 215
Calculation steps:
[( 215 - 778 ) ÷ 778] x 100 = -72.37%
Formula
Percentage change = [(215 - 778) / 778] x 100
Subtract the new number by the original number
215 - 778 = -563
-563 ÷ 778 = -0.7236503856041131
-0.7236503856041131 x 100 = -72.37%