-20.8% is the change from 274 to 217
Calculation steps:
[( 217 - 274 ) ÷ 274] x 100 = -20.8%
Formula
Percentage change = [(217 - 274) / 274] x 100
Subtract the new number by the original number
217 - 274 = -57
-57 ÷ 274 = -0.20802919708029197
-0.20802919708029197 x 100 = -20.8%