309.2% is the change from 87 to 356
Calculation steps:
[( 356 - 87 ) ÷ 87] x 100 = 309.2%
Formula
Percentage change = [(356 - 87) / 87] x 100
Subtract the new number by the original number
356 - 87 = 269
269 ÷ 87 = 3.0919540229885056
3.0919540229885056 x 100 = 309.2%