283.78% is the change from 74 to 284
Calculation steps:
[( 284 - 74 ) ÷ 74] x 100 = 283.78%
Formula
Percentage change = [(284 - 74) / 74] x 100
Subtract the new number by the original number
284 - 74 = 210
210 ÷ 74 = 2.8378378378378377
2.8378378378378377 x 100 = 283.78%