-26.62% is the change from 293 to 215
Calculation steps:
[( 215 - 293 ) ÷ 293] x 100 = -26.62%
Formula
Percentage change = [(215 - 293) / 293] x 100
Subtract the new number by the original number
215 - 293 = -78
-78 ÷ 293 = -0.26621160409556316
-0.26621160409556316 x 100 = -26.62%