-29.63% is the change from 351 to 247
Calculation steps:
[( 247 - 351 ) ÷ 351] x 100 = -29.63%
Formula
Percentage change = [(247 - 351) / 351] x 100
Subtract the new number by the original number
247 - 351 = -104
-104 ÷ 351 = -0.2962962962962963
-0.2962962962962963 x 100 = -29.63%