-72.78% is the change from 790 to 215
Calculation steps:
[( 215 - 790 ) ÷ 790] x 100 = -72.78%
Formula
Percentage change = [(215 - 790) / 790] x 100
Subtract the new number by the original number
215 - 790 = -575
-575 ÷ 790 = -0.7278481012658228
-0.7278481012658228 x 100 = -72.78%