2.3% is the change from 87 to 89
Calculation steps:
[( 89 - 87 ) ÷ 87] x 100 = 2.3%
Formula
Percentage change = [(89 - 87) / 87] x 100
Subtract the new number by the original number
89 - 87 = 2
2 ÷ 87 = 0.022988505747126436
0.022988505747126436 x 100 = 2.3%