-37.04% is the change from 351 to 221
Calculation steps:
[( 221 - 351 ) ÷ 351] x 100 = -37.04%
Formula
Percentage change = [(221 - 351) / 351] x 100
Subtract the new number by the original number
221 - 351 = -130
-130 ÷ 351 = -0.37037037037037035
-0.37037037037037035 x 100 = -37.04%