1.86% is the change from 215 to 219
Calculation steps:
[( 219 - 215 ) ÷ 215] x 100 = 1.86%
Formula
Percentage change = [(219 - 215) / 215] x 100
Subtract the new number by the original number
219 - 215 = 4
4 ÷ 215 = 0.018604651162790697
0.018604651162790697 x 100 = 1.86%